tools: add eslint check for skipIfEslintMissing

Add a custom eslint rule to check for `common.skipIfEslintMissing()` to
allow tests to run from source tarballs that do not include eslint.

Fix up rule tests that were failing the new check.

Refs: https://github.com/nodejs/node/issues/20336

PR-URL: https://github.com/nodejs/node/pull/20372
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/eslint-rules/inspector-check.js b/tools/eslint-rules/inspector-check.js
index 00a2dd0296..189b023efc 100644
--- a/tools/eslint-rules/inspector-check.js
+++ b/tools/eslint-rules/inspector-check.js
@@ -11,7 +11,7 @@ const utils = require('./rules-utils.js');
 // Rule Definition
 //------------------------------------------------------------------------------
 const msg = 'Please add a skipIfInspectorDisabled() call to allow this ' +
-            'test to be skippped when Node is built \'--without-inspector\'.';
+            'test to be skipped when Node is built \'--without-inspector\'.';
 
 module.exports = function(context) {
   const missingCheckNodes = [];