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, 28 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/lodash/_shuffleSelf.js b/tools/node_modules/eslint/node_modules/lodash/_shuffleSelf.js
new file mode 100644
index 0000000000..8bcc4f5c32
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/lodash/_shuffleSelf.js
@@ -0,0 +1,28 @@
+var baseRandom = require('./_baseRandom');
+
+/**
+ * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
+ *
+ * @private
+ * @param {Array} array The array to shuffle.
+ * @param {number} [size=array.length] The size of `array`.
+ * @returns {Array} Returns `array`.
+ */
+function shuffleSelf(array, size) {
+  var index = -1,
+      length = array.length,
+      lastIndex = length - 1;
+
+  size = size === undefined ? length : size;
+  while (++index < size) {
+    var rand = baseRandom(index, lastIndex),
+        value = array[rand];
+
+    array[rand] = array[index];
+    array[index] = value;
+  }
+  array.length = size;
+  return array;
+}
+
+module.exports = shuffleSelf;