Set up rewriting triggers

src/parsing/preparser.h

Index: src/parsing/preparser.h
diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
index 9cb64269a38a6a33117b445a83b3a42766e47a8e..a7172f217050842f53de64b509a3b0119943e6ee 100644
--- a/src/parsing/preparser.h
+++ b/src/parsing/preparser.h
@@ -941,7 +941,10 @@ class PreParserTraits {
   inline PreParserExpression RewriteNonPattern(
       PreParserExpression expr, const ExpressionClassifier* classifier,
       bool* ok);
-  inline PreParserExpression RewriteObjectLiteralProperty(
+  inline PreParserExpression RewriteNonPatternArguments(
+      PreParserExpression args, const ExpressionClassifier* classifier,
+      bool* ok);
+  inline PreParserExpression RewriteNonPatternObjectLiteralProperty(
       PreParserExpression property, const ExpressionClassifier* classifier,
       bool* ok);
 
@@ -1134,7 +1137,15 @@ PreParserExpression PreParserTraits::RewriteNonPattern(
 }
 
 
-PreParserExpression PreParserTraits::RewriteObjectLiteralProperty(
+PreParserExpression PreParserTraits::RewriteNonPatternArguments(
+    PreParserExpression args, const ExpressionClassifier* classifier,
+    bool* ok) {
+  pre_parser_->ValidateExpression(classifier, ok);
+  return args;
+}
+
+
+PreParserExpression PreParserTraits::RewriteNonPatternObjectLiteralProperty(
     PreParserExpression property, const ExpressionClassifier* classifier,
     bool* ok) {
   pre_parser_->ValidateExpression(classifier, ok);