tools: update ESLint to v6.5.1

PR-URL: https://github.com/nodejs/node/pull/29785
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: David Carlier <devnexen@gmail.com>

37 files changed, 604 insertions, 157 deletions

diff --git a/tools/node_modules/eslint/README.md b/tools/node_modules/eslint/README.md
index 28f512920c..fbd99b12df 100644
--- a/tools/node_modules/eslint/README.md
+++ b/tools/node_modules/eslint/README.md
@@ -120,7 +120,7 @@ Yes, ESLint natively supports parsing JSX syntax (this must be enabled in [confi
 
 ### What ECMAScript versions does ESLint support?
 
-ESLint has full support for ECMAScript 3, 5 (default), 2015, 2016, 2017, and 2018. You can set your desired ECMAScript syntax (and other settings, like global variables or your target environments) through [configuration](https://eslint.org/docs/user-guide/configuring).
+ESLint has full support for ECMAScript 3, 5 (default), 2015, 2016, 2017, 2018, and 2019. You can set your desired ECMAScript syntax (and other settings, like global variables or your target environments) through [configuration](https://eslint.org/docs/user-guide/configuring).
 
 ### What about experimental features?
 
@@ -210,11 +210,6 @@ Toru Nagashima
 Gyandeep Singh
 </a>
 </td><td align="center" valign="top" width="11%">
-<a href="https://github.com/kaicataldo">
-<img src="https://github.com/kaicataldo.png?s=75" width="75" height="75"><br />
-Kai Cataldo
-</a>
-</td><td align="center" valign="top" width="11%">
 <a href="https://github.com/not-an-aardvark">
 <img src="https://github.com/not-an-aardvark.png?s=75" width="75" height="75"><br />
 Teddy Katz
@@ -241,6 +236,11 @@ The people who review and implement new features.
 The people who review and fix bugs and help triage issues.
 
 <table><tbody><tr><td align="center" valign="top" width="11%">
+<a href="https://github.com/kaicataldo">
+<img src="https://github.com/kaicataldo.png?s=75" width="75" height="75"><br />
+Kai Cataldo
+</a>
+</td><td align="center" valign="top" width="11%">
 <a href="https://github.com/g-plane">
 <img src="https://github.com/g-plane.png?s=75" width="75" height="75"><br />
 Pig Fang
@@ -262,9 +262,9 @@ The following companies, organizations, and individuals support ESLint's ongoing
 <!-- NOTE: This section is autogenerated. Do not manually edit.-->
 <!--sponsorsstart-->
 <h3>Gold Sponsors</h3>
-<p><a href="https://www.shopify.com"><img src="https://images.opencollective.com/shopify/eeb91aa/logo.png" alt="Shopify" height="96"></a> <a href="http://engineering.salesforce.com"><img src="https://images.opencollective.com/salesforce/d1b37c4/logo.png" alt="Salesforce" height="96"></a> <a href="https://badoo.com/team?utm_source=eslint"><img src="https://images.opencollective.com/badoo/2826a3b/logo.png" alt="Badoo" height="96"></a> <a href="https://www.airbnb.com/"><img src="https://images.opencollective.com/airbnb/d327d66/logo.png" alt="Airbnb" height="96"></a> <a href="https://code.facebook.com/projects/"><img src="https://images.opencollective.com/fbopensource/fbb8a5b/logo.png" alt="Facebook Open Source" height="96"></a></p><h3>Silver Sponsors</h3>
+<p><a href="https://www.shopify.com"><img src="https://images.opencollective.com/shopify/eeb91aa/logo.png" alt="Shopify" height="96"></a> <a href="http://engineering.salesforce.com"><img src="https://images.opencollective.com/salesforce/ca8f997/logo.png" alt="Salesforce" height="96"></a> <a href="https://badoo.com/team?utm_source=eslint"><img src="https://images.opencollective.com/badoo/2826a3b/logo.png" alt="Badoo" height="96"></a> <a href="https://www.airbnb.com/"><img src="https://images.opencollective.com/airbnb/d327d66/logo.png" alt="Airbnb" height="96"></a> <a href="https://opensource.facebook.com"><img src="https://images.opencollective.com/fbopensource/fbb8a5b/logo.png" alt="Facebook Open Source" height="96"></a></p><h3>Silver Sponsors</h3>
 <p><a href="https://www.ampproject.org/"><img src="https://images.opencollective.com/amp/c8a3b25/logo.png" alt="AMP Project" height="64"></a></p><h3>Bronze Sponsors</h3>
-<p><a href="https://discordapp.com"><img src="https://images.opencollective.com/discordapp/7e3d9a9/logo.png" alt="Discord" height="32"></a> <a href="https://moneypug.co.uk/"><img src="https://images.opencollective.com/moneypug/45f8d53/logo.png" alt="MONEYPUG" height="32"></a> <a href="https://icons8.com"><img src="https://images.opencollective.com/icons8/0b37d14/logo.png" alt="Free Icons by Icons8" height="32"></a> <a href="https://uxplanet.org/top-ui-ux-design-agencies-user-experience-firms-8c54697e290"><img src="https://images.opencollective.com/ui-ux-design-agencies/cae5dfe/logo.png" alt="UI UX Design Agencies" height="32"></a> <a href="https://clay.global"><img src="https://images.opencollective.com/clayglobal/2468f34/logo.png" alt="clay" height="32"></a> <a href="https://www.vpsserver.com"><img src="https://images.opencollective.com/vpsservercom/logo.png" alt="VPS Server" height="32"></a> <a href="https://themeisle.com"><img src="https://images.opencollective.com/themeisle/logo.png" alt="ThemeIsle" height="32"></a> <a href="https://tekhattan.com"><img src="https://images.opencollective.com/tekhattan/bc73c28/logo.png" alt="TekHattan" height="32"></a> <a href="https://www.marfeel.com/"><img src="https://images.opencollective.com/marfeel/4b88e30/logo.png" alt="Marfeel" height="32"></a> <a href="http://www.firesticktricks.com"><img src="https://images.opencollective.com/fire-stick-tricks/b8fbe2c/logo.png" alt="Fire Stick Tricks" height="32"></a> <a href="https://jsheroes.io/"><img src="https://images.opencollective.com/jsheroes1/9fedf0b/logo.png" alt="JSHeroes " height="32"></a></p>
+<p><a href="https://discordapp.com"><img src="https://images.opencollective.com/discordapp/7e3d9a9/logo.png" alt="Discord" height="32"></a> <a href="https://mixpanel.com"><img src="https://images.opencollective.com/mixpanel/cd682f7/logo.png" alt="Mixpanel" height="32"></a> <a href="https://icons8.com"><img src="https://images.opencollective.com/icons8/0b37d14/logo.png" alt="Free Icons by Icons8" height="32"></a> <a href="https://uxplanet.org/top-ui-ux-design-agencies-user-experience-firms-8c54697e290"><img src="https://images.opencollective.com/ui-ux-design-agencies/cae5dfe/logo.png" alt="UI UX Design Agencies" height="32"></a> <a href="https://clay.global"><img src="https://images.opencollective.com/clayglobal/2468f34/logo.png" alt="clay" height="32"></a> <a href="https://www.vpsserver.com"><img src="https://images.opencollective.com/vpsservercom/logo.png" alt="VPS Server" height="32"></a> <a href="https://themeisle.com"><img src="https://images.opencollective.com/themeisle/logo.png" alt="ThemeIsle" height="32"></a> <a href="https://tekhattan.com"><img src="https://images.opencollective.com/tekhattan/bc73c28/logo.png" alt="TekHattan" height="32"></a> <a href="https://www.marfeel.com/"><img src="https://images.opencollective.com/marfeel/4b88e30/logo.png" alt="Marfeel" height="32"></a> <a href="http://www.firesticktricks.com"><img src="https://images.opencollective.com/fire-stick-tricks/b8fbe2c/logo.png" alt="Fire Stick Tricks" height="32"></a> <a href="https://jsheroes.io/"><img src="https://images.opencollective.com/jsheroes1/9fedf0b/logo.png" alt="JSHeroes " height="32"></a></p>
 <!--sponsorsend-->
 
 ## <a name="technology-sponsors"></a>Technology Sponsors
diff --git a/tools/node_modules/eslint/bin/eslint.js b/tools/node_modules/eslint/bin/eslint.js
index 061e94767f..a9f51f1d7d 100755
--- a/tools/node_modules/eslint/bin/eslint.js
+++ b/tools/node_modules/eslint/bin/eslint.js
@@ -16,9 +16,9 @@ require("v8-compile-cache");
 // Helpers
 //------------------------------------------------------------------------------
 
-const useStdIn = (process.argv.indexOf("--stdin") > -1),
-    init = (process.argv.indexOf("--init") > -1),
-    debug = (process.argv.indexOf("--debug") > -1);
+const useStdIn = process.argv.includes("--stdin"),
+    init = process.argv.includes("--init"),
+    debug = process.argv.includes("--debug");
 
 // must do this initialization *before* other requires in order to work
 if (debug) {
@@ -30,9 +30,9 @@ if (debug) {
 //------------------------------------------------------------------------------
 
 // now we can safely include the other modules that use debug
-const cli = require("../lib/cli"),
-    path = require("path"),
-    fs = require("fs");
+const path = require("path"),
+    fs = require("fs"),
+    cli = require("../lib/cli");
 
 //------------------------------------------------------------------------------
 // Execution
@@ -50,7 +50,6 @@ process.once("uncaughtException", err => {
         console.error("\nOops! Something went wrong! :(");
         console.error(`\nESLint: ${pkg.version}.\n\n${template(err.messageData || {})}`);
     } else {
-
         console.error(err.stack);
     }
 
@@ -60,13 +59,40 @@ process.once("uncaughtException", err => {
 if (useStdIn) {
 
     /*
-     * Note: `process.stdin.fd` is not used here due to https://github.com/nodejs/node/issues/7439.
-     * Accessing the `process.stdin` property seems to modify the behavior of file descriptor 0, resulting
-     * in an error when stdin is piped in asynchronously.
+     * Note: See
+     * - https://github.com/nodejs/node/blob/master/doc/api/process.md#processstdin
+     * - https://github.com/nodejs/node/blob/master/doc/api/process.md#a-note-on-process-io
+     * - https://lists.gnu.org/archive/html/bug-gnu-emacs/2016-01/msg00419.html
+     * - https://github.com/nodejs/node/issues/7439 (historical)
+     *
+     * On Windows using `fs.readFileSync(STDIN_FILE_DESCRIPTOR, "utf8")` seems
+     * to read 4096 bytes before blocking and never drains to read further data.
+     *
+     * The investigation on the Emacs thread indicates:
+     *
+     * > Emacs on MS-Windows uses pipes to communicate with subprocesses; a
+     * > pipe on Windows has a 4K buffer. So as soon as Emacs writes more than
+     * > 4096 bytes to the pipe, the pipe becomes full, and Emacs then waits for
+     * > the subprocess to read its end of the pipe, at which time Emacs will
+     * > write the rest of the stuff.
+     *
+     * Using the nodejs code example for reading from stdin.
      */
-    const STDIN_FILE_DESCRIPTOR = 0;
+    let contents = "",
+        chunk = "";
+
+    process.stdin.setEncoding("utf8");
+    process.stdin.on("readable", () => {
 
-    process.exitCode = cli.execute(process.argv, fs.readFileSync(STDIN_FILE_DESCRIPTOR, "utf8"));
+        // Use a loop to make sure we read all available data.
+        while ((chunk = process.stdin.read()) !== null) {
+            contents += chunk;
+        }
+    });
+
+    process.stdin.on("end", () => {
+        process.exitCode = cli.execute(process.argv, contents, "utf8");
+    });
 } else if (init) {
     const configInit = require("../lib/init/config-initializer");
 
diff --git a/tools/node_modules/eslint/lib/cli-engine/cli-engine.js b/tools/node_modules/eslint/lib/cli-engine/cli-engine.js
index 7f80887f08..3c67d33daa 100644
--- a/tools/node_modules/eslint/lib/cli-engine/cli-engine.js
+++ b/tools/node_modules/eslint/lib/cli-engine/cli-engine.js
@@ -85,8 +85,8 @@ const validFixTypes = new Set(["problem", "suggestion", "layout"]);
  * @property {number} warningCount Number of warnings for the result.
  * @property {number} fixableErrorCount Number of fixable errors for the result.
  * @property {number} fixableWarningCount Number of fixable warnings for the result.
- * @property {string=} [source] The source code of the file that was linted.
- * @property {string=} [output] The source code of the file that was linted, with as many fixes applied as possible.
+ * @property {string} [source] The source code of the file that was linted.
+ * @property {string} [output] The source code of the file that was linted, with as many fixes applied as possible.
  */
 
 /**
@@ -329,7 +329,6 @@ function getRule(ruleId, configArrays) {
 /**
  * Collect used deprecated rules.
  * @param {ConfigArray[]} usedConfigArrays The config arrays which were used.
- * @param {Map<string, Object>} ruleMap The rule definitions which were used (built-ins).
  * @returns {IterableIterator<DeprecatedRuleInfo>} Used deprecated rules.
  */
 function *iterateRuleDeprecationWarnings(usedConfigArrays) {
@@ -530,7 +529,6 @@ class CLIEngine {
     /**
      * Creates a new instance of the core CLI engine.
      * @param {CLIEngineOptions} providedOptions The options for this instance.
-     * @constructor
      */
     constructor(providedOptions) {
         const options = Object.assign(
diff --git a/tools/node_modules/eslint/lib/cli-engine/ignored-paths.js b/tools/node_modules/eslint/lib/cli-engine/ignored-paths.js
index 137d156e9c..12dfce0666 100644
--- a/tools/node_modules/eslint/lib/cli-engine/ignored-paths.js
+++ b/tools/node_modules/eslint/lib/cli-engine/ignored-paths.js
@@ -78,7 +78,7 @@ function mergeDefaultOptions(options) {
     return Object.assign({}, DEFAULT_OPTIONS, options);
 }
 
-/* eslint-disable valid-jsdoc */
+/* eslint-disable jsdoc/check-param-names, jsdoc/require-param */
 /**
  * Normalize the path separators in a given string.
  * On Windows environment, this replaces `\` by `/`.
@@ -89,7 +89,7 @@ function mergeDefaultOptions(options) {
 const normalizePathSeps = path.sep === "/"
     ? (str => str)
     : ((seps, str) => str.replace(seps, "/")).bind(null, new RegExp(`\\${path.sep}`, "gu"));
-/* eslint-enable valid-jsdoc */
+/* eslint-enable jsdoc/check-param-names, jsdoc/require-param */
 
 /**
  * Converts a glob pattern to a new glob pattern relative to a different directory
@@ -298,7 +298,7 @@ class IgnoredPaths {
 
     /**
      * read ignore filepath
-     * @param {string} filePath, file to add to ig
+     * @param {string} filePath file to add to ig
      * @returns {Array} raw ignore rules
      */
     readIgnoreFile(filePath) {
diff --git a/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js b/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js
index 9408780fb0..14e19d9e5a 100644
--- a/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js
+++ b/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js
@@ -47,7 +47,6 @@ class LintResultCache {
 
     /**
      * Creates a new LintResultCache instance.
-     * @constructor
      * @param {string} cacheFileLocation The cache file location.
      *   configuration lookup by file path).
      */
diff --git a/tools/node_modules/eslint/lib/cli.js b/tools/node_modules/eslint/lib/cli.js
index c34545544b..18a917cf0b 100644
--- a/tools/node_modules/eslint/lib/cli.js
+++ b/tools/node_modules/eslint/lib/cli.js
@@ -20,7 +20,8 @@ const fs = require("fs"),
     mkdirp = require("mkdirp"),
     { CLIEngine } = require("./cli-engine"),
     options = require("./options"),
-    log = require("./shared/logging");
+    log = require("./shared/logging"),
+    RuntimeInfo = require("./shared/runtime-info");
 
 const debug = require("debug")("eslint:cli");
 
@@ -159,13 +160,18 @@ const cli = {
         }
 
         const files = currentOptions._;
-
         const useStdin = typeof text === "string";
 
-        if (currentOptions.version) { // version from package.json
-
-            log.info(`v${require("../package.json").version}`);
-
+        if (currentOptions.version) {
+            log.info(RuntimeInfo.version());
+        } else if (currentOptions.envInfo) {
+            try {
+                log.info(RuntimeInfo.environment());
+                return 0;
+            } catch (err) {
+                log.error(err.message);
+                return 2;
+            }
         } else if (currentOptions.printConfig) {
             if (files.length) {
                 log.error("The --print-config option must be used with exactly one file name.");
@@ -177,17 +183,13 @@ const cli = {
             }
 
             const engine = new CLIEngine(translateOptions(currentOptions));
-
             const fileConfig = engine.getConfigForFile(currentOptions.printConfig);
 
             log.info(JSON.stringify(fileConfig, null, "  "));
             return 0;
         } else if (currentOptions.help || (!files.length && !useStdin)) {
-
             log.info(options.generateHelp());
-
         } else {
-
             debug(`Running on ${useStdin ? "text" : "files"}`);
 
             if (currentOptions.fix && currentOptions.fixDryRun) {
@@ -227,9 +229,8 @@ const cli = {
 
                 return (report.errorCount || tooManyWarnings) ? 1 : 0;
             }
-            return 2;
-
 
+            return 2;
         }
 
         return 0;
diff --git a/tools/node_modules/eslint/lib/init/config-rule.js b/tools/node_modules/eslint/lib/init/config-rule.js
index fbe9b779ab..e40feb7145 100644
--- a/tools/node_modules/eslint/lib/init/config-rule.js
+++ b/tools/node_modules/eslint/lib/init/config-rule.js
@@ -99,7 +99,7 @@ function groupByProperty(objects) {
  * Configs may also have one or more additional elements to specify rule
  * configuration or options.
  *
- * @typedef {array|number} ruleConfig
+ * @typedef {Array|number} ruleConfig
  * @param {number}  0  The rule's severity (0, 1, 2).
  */
 
@@ -185,7 +185,7 @@ class RuleConfigSet {
 
         /**
          * Stored valid rule configurations for this instance
-         * @type {array}
+         * @type {Array}
          */
         this.ruleConfigs = configs || [];
     }
diff --git a/tools/node_modules/eslint/lib/init/npm-utils.js b/tools/node_modules/eslint/lib/init/npm-utils.js
index 7fe7c6e7d5..3d4a896b6f 100644
--- a/tools/node_modules/eslint/lib/init/npm-utils.js
+++ b/tools/node_modules/eslint/lib/init/npm-utils.js
@@ -163,7 +163,7 @@ function checkDevDeps(packages) {
 /**
  * Check whether package.json is found in current path.
  *
- * @param   {string=} startDir Starting directory
+ * @param   {string} [startDir] Starting directory
  * @returns {boolean} Whether a package.json is found in current path.
  */
 function checkPackageJson(startDir) {
diff --git a/tools/node_modules/eslint/lib/linter/code-path-analysis/debug-helpers.js b/tools/node_modules/eslint/lib/linter/code-path-analysis/debug-helpers.js
index 9af985ce85..2ca6dbc1e5 100644
--- a/tools/node_modules/eslint/lib/linter/code-path-analysis/debug-helpers.js
+++ b/tools/node_modules/eslint/lib/linter/code-path-analysis/debug-helpers.js
@@ -21,7 +21,7 @@ const debug = require("debug")("eslint:code-path");
  * @returns {string} Id of the segment.
  */
 /* istanbul ignore next */
-function getId(segment) { // eslint-disable-line require-jsdoc
+function getId(segment) { // eslint-disable-line jsdoc/require-jsdoc
     return segment.id + (segment.reachable ? "" : "!");
 }
 
diff --git a/tools/node_modules/eslint/lib/linter/linter.js b/tools/node_modules/eslint/lib/linter/linter.js
index 7d1dc8c8c1..534181da9e 100644
--- a/tools/node_modules/eslint/lib/linter/linter.js
+++ b/tools/node_modules/eslint/lib/linter/linter.js
@@ -472,7 +472,6 @@ function normalizeFilename(filename) {
     return index === -1 ? filename : parts.slice(index).join(path.sep);
 }
 
-// eslint-disable-next-line valid-jsdoc
 /**
  * Normalizes the possible options for `linter.verify` and `linter.verifyAndFix` to a
  * consistent shape.
diff --git a/tools/node_modules/eslint/lib/options.js b/tools/node_modules/eslint/lib/options.js
index 440773a844..83bf9afc22 100644
--- a/tools/node_modules/eslint/lib/options.js
+++ b/tools/node_modules/eslint/lib/options.js
@@ -225,6 +225,12 @@ module.exports = optionator({
             description: "Run config initialization wizard"
         },
         {
+            option: "env-info",
+            type: "Boolean",
+            default: "false",
+            description: "Output execution environment information"
+        },
+        {
             option: "debug",
             type: "Boolean",
             default: false,
diff --git a/tools/node_modules/eslint/lib/rule-tester/rule-tester.js b/tools/node_modules/eslint/lib/rule-tester/rule-tester.js
index 0d1319c11a..9f8324a358 100644
--- a/tools/node_modules/eslint/lib/rule-tester/rule-tester.js
+++ b/tools/node_modules/eslint/lib/rule-tester/rule-tester.js
@@ -130,7 +130,7 @@ function freezeDeeply(x) {
  */
 function sanitize(text) {
     return text.replace(
-        /[\u0000-\u001f]/gu, // eslint-disable-line no-control-regex
+        /[\u0000-\u0009|\u000b-\u001a]/gu, // eslint-disable-line no-control-regex
         c => `\\u${c.codePointAt(0).toString(16).padStart(4, "0")}`
     );
 }
@@ -177,7 +177,6 @@ class RuleTester {
     /**
      * Creates a new instance of RuleTester.
      * @param {Object} [testerConfig] Optional, extra configuration for the tester
-     * @constructor
      */
     constructor(testerConfig) {
 
diff --git a/tools/node_modules/eslint/lib/rules/capitalized-comments.js b/tools/node_modules/eslint/lib/rules/capitalized-comments.js
index 4747774359..dd7ef14564 100644
--- a/tools/node_modules/eslint/lib/rules/capitalized-comments.js
+++ b/tools/node_modules/eslint/lib/rules/capitalized-comments.js
@@ -59,7 +59,7 @@ const DEFAULTS = {
  * @param {string} which Either "line" or "block".
  * @returns {Object} The normalized options.
  */
-function getNormalizedOptions(rawOptions = {}, which) {
+function getNormalizedOptions(rawOptions, which) {
     return Object.assign({}, DEFAULTS, rawOptions[which] || rawOptions);
 }
 
@@ -70,7 +70,7 @@ function getNormalizedOptions(rawOptions = {}, which) {
  * @returns {Object} An object with "Line" and "Block" keys and corresponding
  * normalized options objects.
  */
-function getAllNormalizedOptions(rawOptions) {
+function getAllNormalizedOptions(rawOptions = {}) {
     return {
         Line: getNormalizedOptions(rawOptions, "line"),
         Block: getNormalizedOptions(rawOptions, "block")
diff --git a/tools/node_modules/eslint/lib/rules/indent-legacy.js b/tools/node_modules/eslint/lib/rules/indent-legacy.js
index fb84b732ea..f1c024c368 100644
--- a/tools/node_modules/eslint/lib/rules/indent-legacy.js
+++ b/tools/node_modules/eslint/lib/rules/indent-legacy.js
@@ -303,7 +303,7 @@ module.exports = {
          * @param {int} needed Expected indentation character count
          * @param {int} gottenSpaces Indentation space count in the actual node/code
          * @param {int} gottenTabs Indentation tab count in the actual node/code
-         * @param {Object=} loc Error line and column location
+         * @param {Object} [loc] Error line and column location
          * @param {boolean} isLastNodeCheck Is the error for last node check
          * @returns {void}
          */
diff --git a/tools/node_modules/eslint/lib/rules/indent.js b/tools/node_modules/eslint/lib/rules/indent.js
index f44eafa715..a2fa9c4f40 100644
--- a/tools/node_modules/eslint/lib/rules/indent.js
+++ b/tools/node_modules/eslint/lib/rules/indent.js
@@ -81,6 +81,9 @@ const KNOWN_NODES = new Set([
     "WhileStatement",
     "WithStatement",
     "YieldExpression",
+    "JSXFragment",
+    "JSXOpeningFragment",
+    "JSXClosingFragment",
     "JSXIdentifier",
     "JSXNamespacedName",
     "JSXMemberExpression",
@@ -1453,6 +1456,31 @@ module.exports = {
                 offsets.setDesiredOffsets(node.name.range, firstToken, 1);
             },
 
+            JSXFragment(node) {
+                const firstOpeningToken = sourceCode.getFirstToken(node.openingFragment);
+                const firstClosingToken = sourceCode.getFirstToken(node.closingFragment);
+
+                addElementListIndent(node.children, firstOpeningToken, firstClosingToken, 1);
+            },
+
+            JSXOpeningFragment(node) {
+                const firstToken = sourceCode.getFirstToken(node);
+                const closingToken = sourceCode.getLastToken(node);
+
+                offsets.setDesiredOffsets(node.range, firstToken, 1);
+                offsets.matchOffsetOf(firstToken, closingToken);
+            },
+
+            JSXClosingFragment(node) {
+                const firstToken = sourceCode.getFirstToken(node);
+                const slashToken = sourceCode.getLastToken(node, { skip: 1 });
+                const closingToken = sourceCode.getLastToken(node);
+                const tokenToMatch = astUtils.isTokenOnSameLine(slashToken, closingToken) ? slashToken : closingToken;
+
+                offsets.setDesiredOffsets(node.range, firstToken, 1);
+                offsets.matchOffsetOf(firstToken, tokenToMatch);
+            },
+
             JSXExpressionContainer(node) {
                 const openingCurly = sourceCode.getFirstToken(node);
                 const closingCurly = sourceCode.getLastToken(node);
diff --git a/tools/node_modules/eslint/lib/rules/new-parens.js b/tools/node_modules/eslint/lib/rules/new-parens.js
index 4b9958fe6c..405ec1b515 100644
--- a/tools/node_modules/eslint/lib/rules/new-parens.js
+++ b/tools/node_modules/eslint/lib/rules/new-parens.js
@@ -65,7 +65,11 @@ module.exports = {
 
                 const lastToken = sourceCode.getLastToken(node);
                 const hasLastParen = lastToken && astUtils.isClosingParenToken(lastToken);
-                const hasParens = hasLastParen && astUtils.isOpeningParenToken(sourceCode.getTokenBefore(lastToken));
+
+                // `hasParens` is true only if the new expression ends with its own parens, e.g., new new foo() does not end with its own parens
+                const hasParens = hasLastParen &&
+                    astUtils.isOpeningParenToken(sourceCode.getTokenBefore(lastToken)) &&
+                    node.callee.range[1] < node.range[1];
 
                 if (always) {
                     if (!hasParens) {
diff --git a/tools/node_modules/eslint/lib/rules/no-extra-bind.js b/tools/node_modules/eslint/lib/rules/no-extra-bind.js
index cc0b1f8437..cc5611b108 100644
--- a/tools/node_modules/eslint/lib/rules/no-extra-bind.js
+++ b/tools/node_modules/eslint/lib/rules/no-extra-bind.js
@@ -40,6 +40,7 @@ module.exports = {
     },
 
     create(context) {
+        const sourceCode = context.getSourceCode();
         let scopeInfo = null;
 
         /**
@@ -71,8 +72,13 @@ module.exports = {
                         return null;
                     }
 
-                    const firstTokenToRemove = context.getSourceCode()
+                    const firstTokenToRemove = sourceCode
                         .getFirstTokenBetween(node.parent.object, node.parent.property, astUtils.isNotClosingParenToken);
+                    const lastTokenToRemove = sourceCode.getLastToken(node.parent.parent);
+
+                    if (sourceCode.commentsExistBetween(firstTokenToRemove, lastTokenToRemove)) {
+                        return null;
+                    }
 
                     return fixer.removeRange([firstTokenToRemove.range[0], node.parent.parent.range[1]]);
                 }
diff --git a/tools/node_modules/eslint/lib/rules/no-extra-label.js b/tools/node_modules/eslint/lib/rules/no-extra-label.js
index a4a98af585..48add937e6 100644
--- a/tools/node_modules/eslint/lib/rules/no-extra-label.js
+++ b/tools/node_modules/eslint/lib/rules/no-extra-label.js
@@ -116,7 +116,15 @@ module.exports = {
                             node: labelNode,
                             messageId: "unexpected",
                             data: labelNode,
-                            fix: fixer => fixer.removeRange([sourceCode.getFirstToken(node).range[1], labelNode.range[1]])
+                            fix(fixer) {
+                                const breakOrContinueToken = sourceCode.getFirstToken(node);
+
+                                if (sourceCode.commentsExistBetween(breakOrContinueToken, labelNode)) {
+                                    return null;
+                                }
+
+                                return fixer.removeRange([breakOrContinueToken.range[1], labelNode.range[1]]);
+                            }
                         });
                     }
                     return;
diff --git a/tools/node_modules/eslint/lib/rules/no-extra-parens.js b/tools/node_modules/eslint/lib/rules/no-extra-parens.js
index c5cf790477..c6809c355b 100644
--- a/tools/node_modules/eslint/lib/rules/no-extra-parens.js
+++ b/tools/node_modules/eslint/lib/rules/no-extra-parens.js
@@ -205,7 +205,14 @@ module.exports = {
             const lastToken = sourceCode.getLastToken(newExpression);
             const penultimateToken = sourceCode.getTokenBefore(lastToken);
 
-            return newExpression.arguments.length > 0 || astUtils.isOpeningParenToken(penultimateToken) && astUtils.isClosingParenToken(lastToken);
+            return newExpression.arguments.length > 0 ||
+                (
+
+                    // The expression should end with its own parens, e.g., new new foo() is not a new expression with parens
+                    astUtils.isOpeningParenToken(penultimateToken) &&
+                    astUtils.isClosingParenToken(lastToken) &&
+                    newExpression.callee.range[1] < newExpression.range[1]
+                );
         }
 
         /**
@@ -338,7 +345,7 @@ module.exports = {
             function finishReport() {
                 context.report({
                     node,
-                    loc: leftParenToken.loc.start,
+                    loc: leftParenToken.loc,
                     messageId: "unexpected",
                     fix(fixer) {
                         const parenthesizedSource = sourceCode.text.slice(leftParenToken.range[1], rightParenToken.range[0]);
@@ -887,6 +894,12 @@ module.exports = {
                     report(node.object);
                 }
 
+                if (nodeObjHasExcessParens &&
+                  node.object.type === "NewExpression" &&
+                  isNewExpressionWithParens(node.object)) {
+                    report(node.object);
+                }
+
                 if (node.computed && hasExcessParens(node.property)) {
                     report(node.property);
                 }
diff --git a/tools/node_modules/eslint/lib/rules/no-regex-spaces.js b/tools/node_modules/eslint/lib/rules/no-regex-spaces.js
index 55e79517ce..41f5e149df 100644
--- a/tools/node_modules/eslint/lib/rules/no-regex-spaces.js
+++ b/tools/node_modules/eslint/lib/rules/no-regex-spaces.js
@@ -5,7 +5,29 @@
 
 "use strict";
 
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
 const astUtils = require("./utils/ast-utils");
+const regexpp = require("regexpp");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+const regExpParser = new regexpp.RegExpParser();
+const DOUBLE_SPACE = / {2}/u;
+
+/**
+ * Check if node is a string
+ * @param {ASTNode} node node to evaluate
+ * @returns {boolean} True if its a string
+ * @private
+ */
+function isString(node) {
+    return node && node.type === "Literal" && typeof node.value === "string";
+}
 
 //------------------------------------------------------------------------------
 // Rule Definition
@@ -27,40 +49,70 @@ module.exports = {
     },
 
     create(context) {
-        const sourceCode = context.getSourceCode();
 
         /**
-         * Validate regular expressions
-         * @param {ASTNode} node node to validate
-         * @param {string} value regular expression to validate
-         * @param {number} valueStart The start location of the regex/string literal. It will always be the case that
-         * `sourceCode.getText().slice(valueStart, valueStart + value.length) === value`
+         * Validate regular expression
+         *
+         * @param {ASTNode} nodeToReport Node to report.
+         * @param {string} pattern Regular expression pattern to validate.
+         * @param {string} rawPattern Raw representation of the pattern in the source code.
+         * @param {number} rawPatternStartRange Start range of the pattern in the source code.
+         * @param {string} flags Regular expression flags.
          * @returns {void}
          * @private
          */
-        function checkRegex(node, value, valueStart) {
-            const multipleSpacesRegex = /( {2,})( [+*{?]|[^+*{?]|$)/u,
-                regexResults = multipleSpacesRegex.exec(value);
+        function checkRegex(nodeToReport, pattern, rawPattern, rawPatternStartRange, flags) {
 
-            if (regexResults !== null) {
-                const count = regexResults[1].length;
+            // Skip if there are no consecutive spaces in the source code, to avoid reporting e.g., RegExp(' \ ').
+            if (!DOUBLE_SPACE.test(rawPattern)) {
+                return;
+            }
 
-                context.report({
-                    node,
-                    message: "Spaces are hard to count. Use {{{count}}}.",
-                    data: { count },
-                    fix(fixer) {
-                        return fixer.replaceTextRange(
-                            [valueStart + regexResults.index, valueStart + regexResults.index + count],
-                            ` {${count}}`
-                        );
-                    }
-                });
-
-                /*
-                 * TODO: (platinumazure) Fix message to use rule message
-                 * substitution when api.report is fixed in lib/eslint.js.
-                 */
+            const characterClassNodes = [];
+            let regExpAST;
+
+            try {
+                regExpAST = regExpParser.parsePattern(pattern, 0, pattern.length, flags.includes("u"));
+            } catch (e) {
+
+                // Ignore regular expressions with syntax errors
+                return;
+            }
+
+            regexpp.visitRegExpAST(regExpAST, {
+                onCharacterClassEnter(ccNode) {
+                    characterClassNodes.push(ccNode);
+                }
+            });
+
+            const spacesPattern = /( {2,})(?: [+*{?]|[^+*{?]|$)/gu;
+            let match;
+
+            while ((match = spacesPattern.exec(pattern))) {
+                const { 1: { length }, index } = match;
+
+                // Report only consecutive spaces that are not in character classes.
+                if (
+                    characterClassNodes.every(({ start, end }) => index < start || end <= index)
+                ) {
+                    context.report({
+                        node: nodeToReport,
+                        message: "Spaces are hard to count. Use {{{length}}}.",
+                        data: { length },
+                        fix(fixer) {
+                            if (pattern !== rawPattern) {
+                                return null;
+                            }
+                            return fixer.replaceTextRange(
+                                [rawPatternStartRange + index, rawPatternStartRange + index + length],
+                                ` {${length}}`
+                            );
+                        }
+                    });
+
+                    // Report only the first occurence of consecutive spaces
+                    return;
+                }
             }
         }
 
@@ -71,26 +123,23 @@ module.exports = {
          * @private
          */
         function checkLiteral(node) {
-            const token = sourceCode.getFirstToken(node),
-                nodeType = token.type,
-                nodeValue = token.value;
+            if (node.regex) {
+                const pattern = node.regex.pattern;
+                const rawPattern = node.raw.slice(1, node.raw.lastIndexOf("/"));
+                const rawPatternStartRange = node.range[0] + 1;
+                const flags = node.regex.flags;
 
-            if (nodeType === "RegularExpression") {
-                checkRegex(node, nodeValue, token.range[0]);
+                checkRegex(
+                    node,
+                    pattern,
+                    rawPattern,
+                    rawPatternStartRange,
+                    flags
+                );
             }
         }
 
         /**
-         * Check if node is a string
-         * @param {ASTNode} node node to evaluate
-         * @returns {boolean} True if its a string
-         * @private
-         */
-        function isString(node) {
-            return node && node.type === "Literal" && typeof node.value === "string";
-        }
-
-        /**
          * Validate strings passed to the RegExp constructor
          * @param {ASTNode} node node to validate
          * @returns {void}
@@ -100,9 +149,22 @@ module.exports = {
             const scope = context.getScope();
             const regExpVar = astUtils.getVariableByName(scope, "RegExp");
             const shadowed = regExpVar && regExpVar.defs.length > 0;
+            const patternNode = node.arguments[0];
+            const flagsNode = node.arguments[1];
 
-            if (node.callee.type === "Identifier" && node.callee.name === "RegExp" && isString(node.arguments[0]) && !shadowed) {
-                checkRegex(node, node.arguments[0].value, node.arguments[0].range[0] + 1);
+            if (node.callee.type === "Identifier" && node.callee.name === "RegExp" && isString(patternNode) && !shadowed) {
+                const pattern = patternNode.value;
+                const rawPattern = patternNode.raw.slice(1, -1);
+                const rawPatternStartRange = patternNode.range[0] + 1;
+                const flags = isString(flagsNode) ? flagsNode.value : "";
+
+                checkRegex(
+                    node,
+                    pattern,
+                    rawPattern,
+                    rawPatternStartRange,
+                    flags
+                );
             }
         }
 
@@ -111,6 +173,5 @@ module.exports = {
             CallExpression: checkFunction,
             NewExpression: checkFunction
         };
-
     }
 };
diff --git a/tools/node_modules/eslint/lib/rules/no-undef-init.js b/tools/node_modules/eslint/lib/rules/no-undef-init.js
index 1390c880fc..1fdccb867b 100644
--- a/tools/node_modules/eslint/lib/rules/no-undef-init.js
+++ b/tools/node_modules/eslint/lib/rules/no-undef-init.js
@@ -37,7 +37,8 @@ module.exports = {
                     init = node.init && node.init.name,
                     scope = context.getScope(),
                     undefinedVar = astUtils.getVariableByName(scope, "undefined"),
-                    shadowed = undefinedVar && undefinedVar.defs.length > 0;
+                    shadowed = undefinedVar && undefinedVar.defs.length > 0,
+                    lastToken = sourceCode.getLastToken(node);
 
                 if (init === "undefined" && node.parent.kind !== "const" && !shadowed) {
                     context.report({
@@ -54,6 +55,11 @@ module.exports = {
                                 // Don't fix destructuring assignment to `undefined`.
                                 return null;
                             }
+
+                            if (sourceCode.commentsExistBetween(node.id, lastToken)) {
+                                return null;
+                            }
+
                             return fixer.removeRange([node.id.range[1], node.range[1]]);
                         }
                     });
diff --git a/tools/node_modules/eslint/lib/rules/no-useless-rename.js b/tools/node_modules/eslint/lib/rules/no-useless-rename.js
index c1860645ea..f31459bd8a 100644
--- a/tools/node_modules/eslint/lib/rules/no-useless-rename.js
+++ b/tools/node_modules/eslint/lib/rules/no-useless-rename.js
@@ -36,7 +36,8 @@ module.exports = {
     },
 
     create(context) {
-        const options = context.options[0] || {},
+        const sourceCode = context.getSourceCode(),
+            options = context.options[0] || {},
             ignoreDestructuring = options.ignoreDestructuring === true,
             ignoreImport = options.ignoreImport === true,
             ignoreExport = options.ignoreExport === true;
@@ -64,10 +65,18 @@ module.exports = {
                     type
                 },
                 fix(fixer) {
+                    if (sourceCode.commentsExistBetween(initial, result)) {
+                        return null;
+                    }
+
+                    const replacementText = result.type === "AssignmentPattern"
+                        ? sourceCode.getText(result)
+                        : name;
+
                     return fixer.replaceTextRange([
                         initial.range[0],
                         result.range[1]
-                    ], name);
+                    ], replacementText);
                 }
             });
         }
@@ -82,26 +91,29 @@ module.exports = {
                 return;
             }
 
-            const properties = node.properties;
+            for (const property of node.properties) {
 
-            for (let i = 0; i < properties.length; i++) {
-                if (properties[i].shorthand) {
+                /*
+                 * TODO: Remove after babel-eslint removes ExperimentalRestProperty
+                 * https://github.com/eslint/eslint/issues/12335
+                 */
+                if (property.type === "ExperimentalRestProperty") {
                     continue;
                 }
 
                 /**
-                 * If an ObjectPattern property is computed, we have no idea
-                 * if a rename is useless or not. If an ObjectPattern property
-                 * lacks a key, it is likely an ExperimentalRestProperty and
-                 * so there is no "renaming" occurring here.
+                 * Properties using shorthand syntax and rest elements can not be renamed.
+                 * If the property is computed, we have no idea if a rename is useless or not.
                  */
-                if (properties[i].computed || !properties[i].key) {
+                if (property.shorthand || property.type === "RestElement" || property.computed) {
                     continue;
                 }
 
-                if (properties[i].key.type === "Identifier" && properties[i].key.name === properties[i].value.name ||
-                        properties[i].key.type === "Literal" && properties[i].key.value === properties[i].value.name) {
-                    reportError(properties[i], properties[i].key, properties[i].value, "Destructuring assignment");
+                const key = (property.key.type === "Identifier" && property.key.name) || (property.key.type === "Literal" && property.key.value);
+                const renamedKey = property.value.type === "AssignmentPattern" ? property.value.left.name : property.value.name;
+
+                if (key === renamedKey) {
+                    reportError(property, property.key, property.value, "Destructuring assignment");
                 }
             }
         }
diff --git a/tools/node_modules/eslint/lib/rules/no-useless-return.js b/tools/node_modules/eslint/lib/rules/no-useless-return.js
index 46b5f4b648..7b12e85091 100644
--- a/tools/node_modules/eslint/lib/rules/no-useless-return.js
+++ b/tools/node_modules/eslint/lib/rules/no-useless-return.js
@@ -82,6 +82,7 @@ module.exports = {
     create(context) {
         const segmentInfoMap = new WeakMap();
         const usedUnreachableSegments = new WeakSet();
+        const sourceCode = context.getSourceCode();
         let scopeInfo = null;
 
         /**
@@ -216,7 +217,7 @@ module.exports = {
                         loc: node.loc,
                         message: "Unnecessary return statement.",
                         fix(fixer) {
-                            if (isRemovable(node)) {
+                            if (isRemovable(node) && !sourceCode.getCommentsInside(node).length) {
 
                                 /*
                                  * Extend the replacement range to include the
@@ -224,7 +225,7 @@ module.exports = {
                                  * no-else-return.
                                  * https://github.com/eslint/eslint/issues/8026
                                  */
-                                return new FixTracker(fixer, context.getSourceCode())
+                                return new FixTracker(fixer, sourceCode)
                                     .retainEnclosingFunction(node)
                                     .remove(node);
                             }
diff --git a/tools/node_modules/eslint/lib/rules/prefer-named-capture-group.js b/tools/node_modules/eslint/lib/rules/prefer-named-capture-group.js
index 07e69f022c..7f4a9c3c8e 100644
--- a/tools/node_modules/eslint/lib/rules/prefer-named-capture-group.js
+++ b/tools/node_modules/eslint/lib/rules/prefer-named-capture-group.js
@@ -50,16 +50,16 @@ module.exports = {
         /**
          * Function to check regular expression.
          *
-         * @param {string} regex The regular expression to be check.
+         * @param {string} pattern The regular expression pattern to be check.
          * @param {ASTNode} node AST node which contains regular expression.
          * @param {boolean} uFlag Flag indicates whether unicode mode is enabled or not.
          * @returns {void}
          */
-        function checkRegex(regex, node, uFlag) {
+        function checkRegex(pattern, node, uFlag) {
             let ast;
 
             try {
-                ast = parser.parsePattern(regex, 0, regex.length, uFlag);
+                ast = parser.parsePattern(pattern, 0, pattern.length, uFlag);
             } catch (_) {
 
                 // ignore regex syntax errors
@@ -69,21 +69,9 @@ module.exports = {
             regexpp.visitRegExpAST(ast, {
                 onCapturingGroupEnter(group) {
                     if (!group.name) {
-                        const locNode = node.type === "Literal" ? node : node.arguments[0];
-
                         context.report({
                             node,
                             messageId: "required",
-                            loc: {
-                                start: {
-                                    line: locNode.loc.start.line,
-                                    column: locNode.loc.start.column + group.start + 1
-                                },
-                                end: {
-                                    line: locNode.loc.start.line,
-                                    column: locNode.loc.start.column + group.end + 1
-                                }
-                            },
                             data: {
                                 group: group.raw
                             }
diff --git a/tools/node_modules/eslint/lib/rules/prefer-numeric-literals.js b/tools/node_modules/eslint/lib/rules/prefer-numeric-literals.js
index ca7358aa01..b4113a3b32 100644
--- a/tools/node_modules/eslint/lib/rules/prefer-numeric-literals.js
+++ b/tools/node_modules/eslint/lib/rules/prefer-numeric-literals.js
@@ -96,6 +96,10 @@ module.exports = {
                         fix(fixer) {
                             const newPrefix = prefixMap[node.arguments[1].value];
 
+                            if (sourceCode.getCommentsInside(node).length) {
+                                return null;
+                            }
+
                             if (+(newPrefix + node.arguments[0].value) !== parseInt(node.arguments[0].value, node.arguments[1].value)) {
 
                                 /*
diff --git a/tools/node_modules/eslint/lib/rules/use-isnan.js b/tools/node_modules/eslint/lib/rules/use-isnan.js
index 877c02754a..b2eb84b7b3 100644
--- a/tools/node_modules/eslint/lib/rules/use-isnan.js
+++ b/tools/node_modules/eslint/lib/rules/use-isnan.js
@@ -6,6 +6,19 @@
 "use strict";
 
 //------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Determines if the given node is a NaN `Identifier` node.
+ * @param {ASTNode|null} node The node to check.
+ * @returns {boolean} `true` if the node is 'NaN' identifier.
+ */
+function isNaNIdentifier(node) {
+    return Boolean(node) && node.type === "Identifier" && node.name === "NaN";
+}
+
+//------------------------------------------------------------------------------
 // Rule Definition
 //------------------------------------------------------------------------------
 
@@ -20,21 +33,69 @@ module.exports = {
             url: "https://eslint.org/docs/rules/use-isnan"
         },
 
-        schema: [],
+        schema: [
+            {
+                type: "object",
+                properties: {
+                    enforceForSwitchCase: {
+                        type: "boolean",
+                        default: false
+                    }
+                },
+                additionalProperties: false
+            }
+        ],
+
         messages: {
-            useIsNaN: "Use the isNaN function to compare with NaN."
+            comparisonWithNaN: "Use the isNaN function to compare with NaN.",
+            switchNaN: "'switch(NaN)' can never match a case clause. Use Number.isNaN instead of the switch.",
+            caseNaN: "'case NaN' can never match. Use Number.isNaN before the switch."
         }
     },
 
     create(context) {
 
-        return {
-            BinaryExpression(node) {
-                if (/^(?:[<>]|[!=]=)=?$/u.test(node.operator) && (node.left.name === "NaN" || node.right.name === "NaN")) {
-                    context.report({ node, messageId: "useIsNaN" });
+        const enforceForSwitchCase = context.options[0] && context.options[0].enforceForSwitchCase;
+
+        /**
+         * Checks the given `BinaryExpression` node.
+         * @param {ASTNode} node The node to check.
+         * @returns {void}
+         */
+        function checkBinaryExpression(node) {
+            if (
+                /^(?:[<>]|[!=]=)=?$/u.test(node.operator) &&
+                (isNaNIdentifier(node.left) || isNaNIdentifier(node.right))
+            ) {
+                context.report({ node, messageId: "comparisonWithNaN" });
+            }
+        }
+
+        /**
+         * Checks the discriminant and all case clauses of the given `SwitchStatement` node.
+         * @param {ASTNode} node The node to check.
+         * @returns {void}
+         */
+        function checkSwitchStatement(node) {
+            if (isNaNIdentifier(node.discriminant)) {
+                context.report({ node, messageId: "switchNaN" });
+            }
+
+            for (const switchCase of node.cases) {
+                if (isNaNIdentifier(switchCase.test)) {
+                    context.report({ node: switchCase, messageId: "caseNaN" });
                 }
             }
+        }
+
+        const listeners = {
+            BinaryExpression: checkBinaryExpression
         };
 
+        if (enforceForSwitchCase) {
+            listeners.SwitchStatement = checkSwitchStatement;
+        }
+
+        return listeners;
     }
 };
diff --git a/tools/node_modules/eslint/lib/shared/logging.js b/tools/node_modules/eslint/lib/shared/logging.js
index 3eb898c34f..6aa1f5a1e5 100644
--- a/tools/node_modules/eslint/lib/shared/logging.js
+++ b/tools/node_modules/eslint/lib/shared/logging.js
@@ -12,6 +12,7 @@ module.exports = {
 
     /**
      * Cover for console.log
+     * @param {...any} args The elements to log.
      * @returns {void}
      */
     info(...args) {
@@ -20,6 +21,7 @@ module.exports = {
 
     /**
      * Cover for console.error
+     * @param {...any} args The elements to log.
      * @returns {void}
      */
     error(...args) {
diff --git a/tools/node_modules/eslint/lib/shared/runtime-info.js b/tools/node_modules/eslint/lib/shared/runtime-info.js
new file mode 100644
index 0000000000..169bbc58f1
--- /dev/null
+++ b/tools/node_modules/eslint/lib/shared/runtime-info.js
@@ -0,0 +1,163 @@
+/**
+ * @fileoverview Utility to get information about the execution environment.
+ * @author Kai Cataldo
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const path = require("path");
+const spawn = require("cross-spawn");
+const { isEmpty } = require("lodash");
+const log = require("../shared/logging");
+const packageJson = require("../../package.json");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Generates and returns execution environment information.
+ * @returns {string} A string that contains execution environment information.
+ */
+function environment() {
+    const cache = new Map();
+
+    /**
+     * Checks if a path is a child of a directory.
+     * @param {string} parentPath - The parent path to check.
+     * @param {string} childPath - The path to check.
+     * @returns {boolean} Whether or not the given path is a child of a directory.
+     */
+    function isChildOfDirectory(parentPath, childPath) {
+        return !path.relative(parentPath, childPath).startsWith("..");
+    }
+
+    /**
+     * Synchronously executes a shell command and formats the result.
+     * @param {string} cmd - The command to execute.
+     * @param {Array} args - The arguments to be executed with the command.
+     * @returns {string} The version returned by the command.
+     */
+    function execCommand(cmd, args) {
+        const key = [cmd, ...args].join(" ");
+
+        if (cache.has(key)) {
+            return cache.get(key);
+        }
+
+        const process = spawn.sync(cmd, args, { encoding: "utf8" });
+
+        if (process.error) {
+            throw process.error;
+        }
+
+        const result = process.stdout.trim();
+
+        cache.set(key, result);
+        return result;
+    }
+
+    /**
+     * Normalizes a version number.
+     * @param {string} versionStr - The string to normalize.
+     * @returns {string} The normalized version number.
+     */
+    function normalizeVersionStr(versionStr) {
+        return versionStr.startsWith("v") ? versionStr : `v${versionStr}`;
+    }
+
+    /**
+     * Gets bin version.
+     * @param {string} bin - The bin to check.
+     * @returns {string} The normalized version returned by the command.
+     */
+    function getBinVersion(bin) {
+        const binArgs = ["--version"];
+
+        try {
+            return normalizeVersionStr(execCommand(bin, binArgs));
+        } catch (e) {
+            log.error(`Error finding ${bin} version running the command \`${bin} ${binArgs.join(" ")}\``);
+            throw e;
+        }
+    }
+
+    /**
+     * Gets installed npm package version.
+     * @param {string} pkg - The package to check.
+     * @param {boolean} global - Whether to check globally or not.
+     * @returns {string} The normalized version returned by the command.
+     */
+    function getNpmPackageVersion(pkg, { global = false } = {}) {
+        const npmBinArgs = ["bin", "-g"];
+        const npmLsArgs = ["ls", "--depth=0", "--json", "eslint"];
+
+        if (global) {
+            npmLsArgs.push("-g");
+        }
+
+        try {
+            const parsedStdout = JSON.parse(execCommand("npm", npmLsArgs));
+
+            /*
+             * Checking globally returns an empty JSON object, while local checks
+             * include the name and version of the local project.
+             */
+            if (isEmpty(parsedStdout) || !(parsedStdout.dependencies && parsedStdout.dependencies.eslint)) {
+                return "Not found";
+            }
+
+            const [, processBinPath] = process.argv;
+            let npmBinPath;
+
+            try {
+                npmBinPath = execCommand("npm", npmBinArgs);
+            } catch (e) {
+                log.error(`Error finding npm binary path when running command \`npm ${npmBinArgs.join(" ")}\``);
+                throw e;
+            }
+
+            const isGlobal = isChildOfDirectory(npmBinPath, processBinPath);
+            let pkgVersion = parsedStdout.dependencies.eslint.version;
+
+            if ((global && isGlobal) || (!global && !isGlobal)) {
+                pkgVersion += " (Currently used)";
+            }
+
+            return normalizeVersionStr(pkgVersion);
+        } catch (e) {
+            log.error(`Error finding ${pkg} version running the command \`npm ${npmLsArgs.join(" ")}\``);
+            throw e;
+        }
+    }
+
+    return [
+        "Environment Info:",
+        "",
+        `Node version: ${getBinVersion("node")}`,
+        `npm version: ${getBinVersion("npm")}`,
+        `Local ESLint version: ${getNpmPackageVersion("eslint", { global: false })}`,
+        `Global ESLint version: ${getNpmPackageVersion("eslint", { global: true })}`
+    ].join("\n");
+}
+
+/**
+ * Returns version of currently executing ESLint.
+ * @returns {string} The version from the currently executing ESLint's package.json.
+ */
+function version() {
+    return `v${packageJson.version}`;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = {
+    environment,
+    version
+};
diff --git a/tools/node_modules/eslint/lib/source-code/source-code.js b/tools/node_modules/eslint/lib/source-code/source-code.js
index 88a9c0a4e4..42e7b0c2f4 100644
--- a/tools/node_modules/eslint/lib/source-code/source-code.js
+++ b/tools/node_modules/eslint/lib/source-code/source-code.js
@@ -93,7 +93,6 @@ class SourceCode extends TokenStore {
      * @param {ScopeManager|null} textOrConfig.scopeManager - The scope of this source code.
      * @param {Object|null} textOrConfig.visitorKeys - The visitor keys to traverse AST.
      * @param {ASTNode} [astIfNoConfig] - The Program node of the AST representing the code. This AST should be created from the text that BOM was stripped.
-     * @constructor
      */
     constructor(textOrConfig, astIfNoConfig) {
         let text, ast, parserServices, scopeManager, visitorKeys;
@@ -206,9 +205,9 @@ class SourceCode extends TokenStore {
 
     /**
      * Gets the source code for the given node.
-     * @param {ASTNode=} node The AST node to get the text for.
-     * @param {int=} beforeCount The number of characters before the node to retrieve.
-     * @param {int=} afterCount The number of characters after the node to retrieve.
+     * @param {ASTNode} [node] The AST node to get the text for.
+     * @param {int} [beforeCount] The number of characters before the node to retrieve.
+     * @param {int} [afterCount] The number of characters after the node to retrieve.
      * @returns {string} The text representing the AST node.
      * @public
      */
diff --git a/tools/node_modules/eslint/node_modules/acorn/README.md b/tools/node_modules/eslint/node_modules/acorn/README.md
index 9b7c0badb1..585f2736fc 100644
--- a/tools/node_modules/eslint/node_modules/acorn/README.md
+++ b/tools/node_modules/eslint/node_modules/acorn/README.md
@@ -52,9 +52,10 @@ Options can be provided by passing a second argument, which should be
 an object containing any of these fields:
 
 - **ecmaVersion**: Indicates the ECMAScript version to parse. Must be
-  either 3, 5, 6 (2015), 7 (2016), 8 (2017), 9 (2018) or 10 (2019, partial
-  support). This influences support for strict mode, the set of
-  reserved words, and support for new syntax features. Default is 10.
+  either 3, 5, 6 (2015), 7 (2016), 8 (2017), 9 (2018), 10 (2019) or 11
+  (2020, partial support). This influences support for strict mode,
+  the set of reserved words, and support for new syntax features.
+  Default is 10.
 
   **NOTE**: Only 'stage 4' (finalized) ECMAScript features are being
   implemented by Acorn. Other proposed new features can be implemented
diff --git a/tools/node_modules/eslint/node_modules/acorn/dist/acorn.js b/tools/node_modules/eslint/node_modules/acorn/dist/acorn.js
index e4d9e76eb7..c9209c0f6c 100644
--- a/tools/node_modules/eslint/node_modules/acorn/dist/acorn.js
+++ b/tools/node_modules/eslint/node_modules/acorn/dist/acorn.js
@@ -2173,7 +2173,7 @@
       //     super [ Expression ]
       //     super . IdentifierName
       // SuperCall:
-      //     super Arguments
+      //     super ( Arguments )
       if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
         { this.unexpected(); }
       return this.finishNode(node, "Super")
@@ -2468,7 +2468,7 @@
     while (!this.eat(types.braceR)) {
       if (!first) {
         this.expect(types.comma);
-        if (this.afterTrailingComma(types.braceR)) { break }
+        if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types.braceR)) { break }
       } else { first = false; }
 
       var prop = this.parseProperty(isPattern, refDestructuringErrors);
@@ -4923,7 +4923,29 @@
 
   // Acorn is a tiny, fast JavaScript parser written in JavaScript.
 
-  var version = "7.0.0";
+  var version = "7.1.0";
+
+  Parser.acorn = {
+    Parser: Parser,
+    version: version,
+    defaultOptions: defaultOptions,
+    Position: Position,
+    SourceLocation: SourceLocation,
+    getLineInfo: getLineInfo,
+    Node: Node,
+    TokenType: TokenType,
+    tokTypes: types,
+    keywordTypes: keywords$1,
+    TokContext: TokContext,
+    tokContexts: types$1,
+    isIdentifierChar: isIdentifierChar,
+    isIdentifierStart: isIdentifierStart,
+    Token: Token,
+    isNewLine: isNewLine,
+    lineBreak: lineBreak,
+    lineBreakG: lineBreakG,
+    nonASCIIwhitespace: nonASCIIwhitespace
+  };
 
   // The main exported interface (under `self.acorn` when in the
   // browser) is a `parse` function that takes a code string and
diff --git a/tools/node_modules/eslint/node_modules/acorn/dist/acorn.mjs b/tools/node_modules/eslint/node_modules/acorn/dist/acorn.mjs
index 3e8e6f19fa..7e6aa1f70f 100644
--- a/tools/node_modules/eslint/node_modules/acorn/dist/acorn.mjs
+++ b/tools/node_modules/eslint/node_modules/acorn/dist/acorn.mjs
@@ -2167,7 +2167,7 @@ pp$3.parseExprAtom = function(refDestructuringErrors) {
     //     super [ Expression ]
     //     super . IdentifierName
     // SuperCall:
-    //     super Arguments
+    //     super ( Arguments )
     if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
       { this.unexpected(); }
     return this.finishNode(node, "Super")
@@ -2462,7 +2462,7 @@ pp$3.parseObj = function(isPattern, refDestructuringErrors) {
   while (!this.eat(types.braceR)) {
     if (!first) {
       this.expect(types.comma);
-      if (this.afterTrailingComma(types.braceR)) { break }
+      if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types.braceR)) { break }
     } else { first = false; }
 
     var prop = this.parseProperty(isPattern, refDestructuringErrors);
@@ -4917,7 +4917,29 @@ pp$9.readWord = function() {
 
 // Acorn is a tiny, fast JavaScript parser written in JavaScript.
 
-var version = "7.0.0";
+var version = "7.1.0";
+
+Parser.acorn = {
+  Parser: Parser,
+  version: version,
+  defaultOptions: defaultOptions,
+  Position: Position,
+  SourceLocation: SourceLocation,
+  getLineInfo: getLineInfo,
+  Node: Node,
+  TokenType: TokenType,
+  tokTypes: types,
+  keywordTypes: keywords$1,
+  TokContext: TokContext,
+  tokContexts: types$1,
+  isIdentifierChar: isIdentifierChar,
+  isIdentifierStart: isIdentifierStart,
+  Token: Token,
+  isNewLine: isNewLine,
+  lineBreak: lineBreak,
+  lineBreakG: lineBreakG,
+  nonASCIIwhitespace: nonASCIIwhitespace
+};
 
 // The main exported interface (under `self.acorn` when in the
 // browser) is a `parse` function that takes a code string and
diff --git a/tools/node_modules/eslint/node_modules/acorn/package.json b/tools/node_modules/eslint/node_modules/acorn/package.json
index 46baa1e126..9fe1c550ef 100644
--- a/tools/node_modules/eslint/node_modules/acorn/package.json
+++ b/tools/node_modules/eslint/node_modules/acorn/package.json
@@ -39,5 +39,5 @@
   "scripts": {
     "prepare": "cd ..; npm run build:main && npm run build:bin"
   },
-  "version": "7.0.0"
+  "version": "7.1.0"
 }
\ No newline at end of file
diff --git a/tools/node_modules/eslint/node_modules/glob-parent/README.md b/tools/node_modules/eslint/node_modules/glob-parent/README.md
index c7fbe32022..36a279384b 100644
--- a/tools/node_modules/eslint/node_modules/glob-parent/README.md
+++ b/tools/node_modules/eslint/node_modules/glob-parent/README.md
@@ -36,10 +36,19 @@ globParent('path/foo'); // 'path' (see issue #3 for details)
 
 ## API
 
-### `globParent(maybeGlobString)`
+### `globParent(maybeGlobString, [options])`
 
 Takes a string and returns the part of the path before the glob begins. Be aware of Escaping rules and Limitations below.
 
+#### options
+
+```js
+{
+  // Disables the automatic conversion of slashes for Windows
+  flipBackslashes: true
+}
+```
+
 ## Escaping
 
 The following characters have special significance in glob patterns and must be escaped if you want them to be treated as regular path characters:
diff --git a/tools/node_modules/eslint/node_modules/glob-parent/index.js b/tools/node_modules/eslint/node_modules/glob-parent/index.js
index 900d3fbe3b..2ded6ea7e6 100644
--- a/tools/node_modules/eslint/node_modules/glob-parent/index.js
+++ b/tools/node_modules/eslint/node_modules/glob-parent/index.js
@@ -10,9 +10,16 @@ var enclosure = /[\{\[].*[\/]*.*[\}\]]$/;
 var globby = /(^|[^\\])([\{\[]|\([^\)]+$)/;
 var escaped = /\\([\*\?\|\[\]\(\)\{\}])/g;
 
-module.exports = function globParent(str) {
+/**
+ * @param {string} str
+ * @param {Object} opts
+ * @param {boolean} [opts.flipBackslashes=true]
+ */
+module.exports = function globParent(str, opts) {
+  var options = Object.assign({ flipBackslashes: true }, opts);
+
   // flip windows path separators
-  if (isWin32 && str.indexOf(slash) < 0) {
+  if (options.flipBackslashes && isWin32 && str.indexOf(slash) < 0) {
     str = str.replace(backslash, slash);
   }
 
diff --git a/tools/node_modules/eslint/node_modules/glob-parent/package.json b/tools/node_modules/eslint/node_modules/glob-parent/package.json
index f59d1f99f3..af850b5225 100644
--- a/tools/node_modules/eslint/node_modules/glob-parent/package.json
+++ b/tools/node_modules/eslint/node_modules/glob-parent/package.json
@@ -63,5 +63,5 @@
     "pretest": "npm run lint",
     "test": "nyc mocha --async-only"
   },
-  "version": "5.0.0"
+  "version": "5.1.0"
 }
\ No newline at end of file
diff --git a/tools/node_modules/eslint/package.json b/tools/node_modules/eslint/package.json
index 2fa34e9372..b57c88bc36 100644
--- a/tools/node_modules/eslint/package.json
+++ b/tools/node_modules/eslint/package.json
@@ -17,7 +17,7 @@
     "cross-spawn": "^6.0.5",
     "debug": "^4.0.1",
     "doctrine": "^3.0.0",
-    "eslint-plugin-markdown": "1.0.0",
+    "eslint-plugin-markdown": "^1.0.0",
     "eslint-scope": "^5.0.0",
     "eslint-utils": "^1.4.2",
     "eslint-visitor-keys": "^1.1.0",
@@ -67,6 +67,7 @@
     "eslint-config-eslint": "file:packages/eslint-config-eslint",
     "eslint-plugin-eslint-plugin": "^2.0.1",
     "eslint-plugin-internal-rules": "file:tools/internal-rules",
+    "eslint-plugin-jsdoc": "^15.9.5",
     "eslint-plugin-node": "^9.0.0",
     "eslint-release": "^1.2.0",
     "eslump": "^2.0.0",
@@ -137,6 +138,7 @@
   },
   "scripts": {
     "docs": "node Makefile.js docs",
+    "fix": "node Makefile.js lint -- fix",
     "fuzz": "node Makefile.js fuzz",
     "generate-alpharelease": "node Makefile.js generatePrerelease -- alpha",
     "generate-betarelease": "node Makefile.js generatePrerelease -- beta",
@@ -149,5 +151,5 @@
     "test": "node Makefile.js test",
     "webpack": "node Makefile.js webpack"
   },
-  "version": "6.4.0"
+  "version": "6.5.1"
 }
\ No newline at end of file