tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/lodash/pickBy.js b/tools/node_modules/eslint/node_modules/lodash/pickBy.js
new file mode 100644
index 0000000000..ae7c271eac
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/lodash/pickBy.js
@@ -0,0 +1,37 @@
+var arrayMap = require('./_arrayMap'),
+    baseIteratee = require('./_baseIteratee'),
+    basePickBy = require('./_basePickBy'),
+    getAllKeysIn = require('./_getAllKeysIn');
+
+/**
+ * Creates an object composed of the `object` properties `predicate` returns
+ * truthy for. The predicate is invoked with two arguments: (value, key).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The source object.
+ * @param {Function} [predicate=_.identity] The function invoked per property.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': '2', 'c': 3 };
+ *
+ * _.pickBy(object, _.isNumber);
+ * // => { 'a': 1, 'c': 3 }
+ */
+function pickBy(object, predicate) {
+  if (object == null) {
+    return {};
+  }
+  var props = arrayMap(getAllKeysIn(object), function(prop) {
+    return [prop];
+  });
+  predicate = baseIteratee(predicate);
+  return basePickBy(object, props, function(value, path) {
+    return predicate(value, path[0]);
+  });
+}
+
+module.exports = pickBy;