Add for-of Crankshaft support

src/typing.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 208 matching lines @@
   ASSERT(!HasStackOverflow());
   CHECK_ALIVE(Visit(stmt->enumerable()));
   CHECK_ALIVE(Visit(stmt->body()));
 
   stmt->RecordTypeFeedback(oracle());
 }
 
 
 void AstTyper::VisitForOfStatement(ForOfStatement* stmt) {
   ASSERT(!HasStackOverflow());
-  CHECK_ALIVE(Visit(stmt->iterable()));
+  CHECK_ALIVE(Visit(stmt->assign_iterator()));
+  CHECK_ALIVE(Visit(stmt->next_result()));
+  CHECK_ALIVE(Visit(stmt->result_done()));
+  stmt->result_done()->RecordToBooleanTypeFeedback(oracle());
+  CHECK_ALIVE(Visit(stmt->assign_each()));
   CHECK_ALIVE(Visit(stmt->body()));
 }
 
 
 void AstTyper::VisitTryCatchStatement(TryCatchStatement* stmt) {
   ASSERT(!HasStackOverflow());
   CHECK_ALIVE(Visit(stmt->try_block()));
   CHECK_ALIVE(Visit(stmt->catch_block()));
 }
 
@@ skipping 269 matching lines @@
 }
 
 
 void AstTyper::VisitModuleStatement(ModuleStatement* stmt) {
   ASSERT(!HasStackOverflow());
   CHECK_ALIVE(Visit(stmt->body()));
 }
 
 
 } }  // namespace v8::internal