From 89545995923c96dce3a19cf4c23930548c68491b Mon Sep 17 00:00:00 2001
From: Ron Buckton <rbuckton@microsoft.com>
Date: Tue, 19 Apr 2016 18:07:27 -0700
Subject: [PATCH] Fix debug failure in parser

---
 src/compiler/utilities.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index 7e393c5a35a..31e4277f75f 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -509,7 +509,7 @@ namespace ts {
             const { line: startLine } = getLineAndCharacterOfPosition(sourceFile, node.body.pos);
             const { line: endLine } = getLineAndCharacterOfPosition(sourceFile, node.body.end);
             if (startLine < endLine) {
-                // The arrow function spans multiple lines, 
+                // The arrow function spans multiple lines,
                 // make the error span be the first line, inclusive.
                 return createTextSpan(pos, getEndLinePosition(startLine, sourceFile) - pos + 1);
             }
@@ -3462,7 +3462,8 @@ namespace ts {
             || kind === SyntaxKind.NullKeyword
             || kind === SyntaxKind.ThisKeyword
             || kind === SyntaxKind.TrueKeyword
-            || kind === SyntaxKind.SuperKeyword;
+            || kind === SyntaxKind.SuperKeyword
+            || kind === SyntaxKind.NonNullExpression;
     }
 
     export function isLeftHandSideExpression(node: Node): node is LeftHandSideExpression {