From f17875e7e0a3e84d61adbeca7d54b068d63a4e84 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Sat, 26 Sep 2015 07:30:19 -0700
Subject: [PATCH] Properly classify "this" and "await" in isExpression

---
 src/compiler/utilities.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index 9334ad58269..f85f5330ad9 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -897,7 +897,6 @@ namespace ts {
 
     export function isExpression(node: Node): boolean {
         switch (node.kind) {
-            case SyntaxKind.ThisKeyword:
             case SyntaxKind.SuperKeyword:
             case SyntaxKind.NullKeyword:
             case SyntaxKind.TrueKeyword:
@@ -930,6 +929,7 @@ namespace ts {
             case SyntaxKind.JsxElement:
             case SyntaxKind.JsxSelfClosingElement:
             case SyntaxKind.YieldExpression:
+            case SyntaxKind.AwaitExpression:
                 return true;
             case SyntaxKind.QualifiedName:
                 while (node.parent.kind === SyntaxKind.QualifiedName) {
@@ -943,6 +943,7 @@ namespace ts {
             // fall through
             case SyntaxKind.NumericLiteral:
             case SyntaxKind.StringLiteral:
+            case SyntaxKind.ThisKeyword:
                 let parent = node.parent;
                 switch (parent.kind) {
                     case SyntaxKind.VariableDeclaration: