Expect a colon if the property was a reserved word.

Author: DanielRosenwasser

src/compiler/parser.ts

@@ -3859,13 +3859,14 @@ module ts {
         function parseObjectBindingElement(): BindingElement {
             let node = <BindingElement>createNode(SyntaxKind.BindingElement);
             // TODO(andersh): Handle computed properties
-            let id = parsePropertyName();
-            if (id.kind === SyntaxKind.Identifier && token !== SyntaxKind.ColonToken) {
-                node.name = <Identifier>id;
+            let tokenIsIdentifier = isIdentifier();
+            let propertyName = parsePropertyName();
+            if (tokenIsIdentifier && token !== SyntaxKind.ColonToken) {
+                node.name = <Identifier>propertyName;
             }
             else {
                 parseExpected(SyntaxKind.ColonToken);
-                node.propertyName = <Identifier>id;
+                node.propertyName = <Identifier>propertyName;
                 node.name = parseIdentifierOrPattern();
             }
             node.initializer = parseInitializer(/*inParameter*/ false);