tools: update ESLint to version 2.1.0

Update ESLint to 2.1.0. ESLint has a number of potentially-useful new
features but this change attempts to be minimal in its changes.
However, some things could not be avoided reasonably.

ESLint 2.1.0 found a few lint issues that ESLing 1.x missed with
template strings that did not take advantage of any features of
template strings, and `let` declarations where `const` sufficed.

Additionally, ESLint 2.1.0 removes some granularity around enabling ES6
features. Some features (e.g., spread operator) that had been turned off
in our configuration for ESLint 1.x are now permitted.

PR-URL: https://github.com/nodejs/node/pull/5214
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: jbergstroem - Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/tools/eslint/node_modules/lodash/differenceWith.js b/tools/eslint/node_modules/lodash/differenceWith.js
new file mode 100644
index 0000000000..b60f3a0681
--- /dev/null
+++ b/tools/eslint/node_modules/lodash/differenceWith.js
@@ -0,0 +1,36 @@
+var baseDifference = require('./_baseDifference'),
+    baseFlatten = require('./_baseFlatten'),
+    isArrayLikeObject = require('./isArrayLikeObject'),
+    last = require('./last'),
+    rest = require('./rest');
+
+/**
+ * This method is like `_.difference` except that it accepts `comparator`
+ * which is invoked to compare elements of `array` to `values`. The comparator
+ * is invoked with two arguments: (arrVal, othVal).
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {...Array} [values] The values to exclude.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+ *
+ * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
+ * // => [{ 'x': 2, 'y': 1 }]
+ */
+var differenceWith = rest(function(array, values) {
+  var comparator = last(values);
+  if (isArrayLikeObject(comparator)) {
+    comparator = undefined;
+  }
+  return isArrayLikeObject(array)
+    ? baseDifference(array, baseFlatten(values, false, true), undefined, comparator)
+    : [];
+});
+
+module.exports = differenceWith;