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, 36 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/lodash/_baseXor.js b/tools/node_modules/eslint/node_modules/lodash/_baseXor.js
new file mode 100644
index 0000000000..8e69338bf9
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/lodash/_baseXor.js
@@ -0,0 +1,36 @@
+var baseDifference = require('./_baseDifference'),
+    baseFlatten = require('./_baseFlatten'),
+    baseUniq = require('./_baseUniq');
+
+/**
+ * The base implementation of methods like `_.xor`, without support for
+ * iteratee shorthands, that accepts an array of arrays to inspect.
+ *
+ * @private
+ * @param {Array} arrays The arrays to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of values.
+ */
+function baseXor(arrays, iteratee, comparator) {
+  var length = arrays.length;
+  if (length < 2) {
+    return length ? baseUniq(arrays[0]) : [];
+  }
+  var index = -1,
+      result = Array(length);
+
+  while (++index < length) {
+    var array = arrays[index],
+        othIndex = -1;
+
+    while (++othIndex < length) {
+      if (othIndex != index) {
+        result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
+      }
+    }
+  }
+  return baseUniq(baseFlatten(result, 1), iteratee, comparator);
+}
+
+module.exports = baseXor;