tools: update ESLint, fix unused vars bug

Update ESLint to 3.0.0. This includes an enhancement to `no-unused-vars`
such that it finds a few instances in our code base that it did not find
previously (fixed in previous commits readying this for landing).

PR-URL: https://github.com/nodejs/node/pull/7601
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

1 files changed, 6 insertions, 16 deletions

diff --git a/tools/eslint/node_modules/lodash/_stackSet.js b/tools/eslint/node_modules/lodash/_stackSet.js
index 76ca89a8df..0380ee54c0 100644
--- a/tools/eslint/node_modules/lodash/_stackSet.js
+++ b/tools/eslint/node_modules/lodash/_stackSet.js
@@ -1,5 +1,5 @@
-var MapCache = require('./_MapCache'),
-    assocSet = require('./_assocSet');
+var ListCache = require('./_ListCache'),
+    MapCache = require('./_MapCache');
 
 /** Used as the size to enable large array optimizations. */
 var LARGE_ARRAY_SIZE = 200;
@@ -15,21 +15,11 @@ var LARGE_ARRAY_SIZE = 200;
  * @returns {Object} Returns the stack cache instance.
  */
 function stackSet(key, value) {
-  var data = this.__data__,
-      array = data.array;
-
-  if (array) {
-    if (array.length < (LARGE_ARRAY_SIZE - 1)) {
-      assocSet(array, key, value);
-    } else {
-      data.array = null;
-      data.map = new MapCache(array);
-    }
-  }
-  var map = data.map;
-  if (map) {
-    map.set(key, value);
+  var cache = this.__data__;
+  if (cache instanceof ListCache && cache.__data__.length == LARGE_ARRAY_SIZE) {
+    cache = this.__data__ = new MapCache(cache.__data__);
   }
+  cache.set(key, value);
   return this;
 }