From 146835e0f145d9dbadcdb9e192a2c96277bf2e3b Mon Sep 17 00:00:00 2001
From: chico <chi187@gmail.com>
Date: Tue, 10 Feb 2015 18:16:54 +0300
Subject: [PATCH] fix broken code, lint and codestyle fixes

---
 lib/6to5/transformation/transformers/es6/tail-call.js | 11 +++++------
 lib/6to5/traversal/scope.js                           |  1 -
 lib/6to5/types/index.js                               |  1 -
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/lib/6to5/transformation/transformers/es6/tail-call.js b/lib/6to5/transformation/transformers/es6/tail-call.js
index cd04cf39e1..b40757edf9 100644
--- a/lib/6to5/transformation/transformers/es6/tail-call.js
+++ b/lib/6to5/transformation/transformers/es6/tail-call.js
@@ -2,7 +2,6 @@
 
 var util = require("../../../util");
 var t    = require("../../../types");
-var _    = require("lodash");
 var map  = require("lodash/collection/map");
 var flatten = require("lodash/array/flatten");
 var reduceRight = require("lodash/collection/reduceRight");
@@ -86,11 +85,11 @@ TailCallTransformer.prototype.run = function () {
   var body = t.ensureBlock(node).body;
 
   if (this.vars.length > 0) {
-    var declarations = flatten(map(this.vars, function(decl) {
-      return decl.declaration;
-    }));
-    var statement = reduceRight(declarations, function(expr, decl) {
-      return t.assignmentExpression("=", decl.id, expr)
+    var declarations = flatten(map(this.vars, function (decl) {
+      return decl.declarations;
+    }, this));
+    var statement = reduceRight(declarations, function (expr, decl) {
+      return t.assignmentExpression("=", decl.id, expr);
     }, t.identifier("undefined"));
     body.unshift(t.expressionStatement(statement));
   }
diff --git a/lib/6to5/traversal/scope.js b/lib/6to5/traversal/scope.js
index 374b4ce798..9a26283954 100644
--- a/lib/6to5/traversal/scope.js
+++ b/lib/6to5/traversal/scope.js
@@ -317,7 +317,6 @@ var blockVariableVisitor = {
 };
 
 Scope.prototype.crawl = function () {
-  var parent = this.parent;
   var block  = this.block;
   var i;
 
diff --git a/lib/6to5/types/index.js b/lib/6to5/types/index.js
index 63a59db517..6e21d7c50f 100644
--- a/lib/6to5/types/index.js
+++ b/lib/6to5/types/index.js
@@ -1,7 +1,6 @@
 "use strict";
 
 var toFastProperties = require("../helpers/to-fast-properties");
-var defaults         = require("lodash/object/defaults");
 var isString         = require("lodash/lang/isString");
 var compact          = require("lodash/array/compact");
 var esutils          = require("esutils");