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, 18 insertions, 0 deletions

diff --git a/tools/eslint/node_modules/lodash/_getMapData.js b/tools/eslint/node_modules/lodash/_getMapData.js
new file mode 100644
index 0000000000..17f63032e1
--- /dev/null
+++ b/tools/eslint/node_modules/lodash/_getMapData.js
@@ -0,0 +1,18 @@
+var isKeyable = require('./_isKeyable');
+
+/**
+ * Gets the data for `map`.
+ *
+ * @private
+ * @param {Object} map The map to query.
+ * @param {string} key The reference key.
+ * @returns {*} Returns the map data.
+ */
+function getMapData(map, key) {
+  var data = map.__data__;
+  return isKeyable(key)
+    ? data[typeof key == 'string' ? 'string' : 'hash']
+    : data.map;
+}
+
+module.exports = getMapData;