Set up rewriting triggers

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 5fa64b7eb1dbc962d9aa7ae3ded5c872138b7cbd..67020e07fb3f0d2566e2a880616a6366d8b1e21b 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -909,6 +909,11 @@ class ParserTraits {
   void SetFunctionNameFromPropertyName(ObjectLiteralProperty* property,
                                        const AstRawString* name);
 
+  // Rewrite expressions
+  V8_INLINE Expression* RewriteExpression(Expression* expr);
+  V8_INLINE ObjectLiteralProperty* RewriteObjectLiteralProperty(
+      ObjectLiteralProperty* property);
+
  private:
   Parser* parser_;
 };
@@ -1261,6 +1266,10 @@ class Parser : public ParserBase<ParserTraits> {
 
   V8_INLINE void RewriteDestructuringAssignments();
 
+  V8_INLINE Expression* RewriteExpression(Expression* expr);
+  V8_INLINE ObjectLiteralProperty* RewriteObjectLiteralProperty(
+      ObjectLiteralProperty* property);
+
   friend class InitializerRewriter;
   void RewriteParameterInitializer(Expression* expr, Scope* scope);