From fcb4c2ba0f1ab659e6ee4f80df0d36801f35d486 Mon Sep 17 00:00:00 2001
From: Andy Hanson <anhans@microsoft.com>
Date: Mon, 3 Oct 2016 08:32:37 -0700
Subject: [PATCH] Use a `for-of` loop for a dense array instead of iterating
 over keys and then indexing

---
 src/compiler/transformers/es6.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/compiler/transformers/es6.ts b/src/compiler/transformers/es6.ts
index e3ee1dd4c3a..7fb0594a6cc 100644
--- a/src/compiler/transformers/es6.ts
+++ b/src/compiler/transformers/es6.ts
@@ -2308,8 +2308,7 @@ namespace ts {
                         extraVariableDeclarations = [];
                     }
                     // hoist collected variable declarations
-                    for (const name in currentState.hoistedLocalVariables) {
-                        const identifier = currentState.hoistedLocalVariables[name];
+                    for (const identifier of currentState.hoistedLocalVariables) {
                         extraVariableDeclarations.push(createVariableDeclaration(identifier));
                     }
                 }