Adding a type vector to replace type cells.

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 305 matching lines @@
     store_.Forget();  // Control may transfer here via 'continue'.
     RECURSE(Visit(stmt->next()));
   }
   store_.Forget();  // Control may transfer here via termination or 'break'.
 }
 
 
 void AstTyper::VisitForInStatement(ForInStatement* stmt) {
   // Collect type feedback.
   stmt->set_for_in_type(static_cast<ForInStatement::ForInType>(
-      oracle()->ForInType(stmt->ForInFeedbackId())));
+      oracle()->ForInType(stmt->ForInFeedbackSlot())));
 
   RECURSE(Visit(stmt->enumerable()));
   store_.Forget();  // Control may transfer here via looping or 'continue'.
   ObserveTypesAtOsrEntry(stmt);
   RECURSE(Visit(stmt->body()));
   store_.Forget();  // Control may transfer here via 'break'.
 }
 
 
 void AstTyper::VisitForOfStatement(ForOfStatement* stmt) {
@@ skipping 186 matching lines @@
   RECURSE(Visit(expr->key()));
 
   // We don't know anything about the result type.
 }
 
 
 void AstTyper::VisitCall(Call* expr) {
   // Collect type feedback.
   RECURSE(Visit(expr->expression()));
   if (!expr->expression()->IsProperty() &&
-      oracle()->CallIsMonomorphic(expr->CallFeedbackId())) {
-    expr->set_target(oracle()->GetCallTarget(expr->CallFeedbackId()));
+      expr->HasCallFeedbackSlot() &&
+      oracle()->CallIsMonomorphic(expr->CallFeedbackSlot())) {
+    expr->set_target(oracle()->GetCallTarget(expr->CallFeedbackSlot()));
   }
 
   ZoneList<Expression*>* args = expr->arguments();
   for (int i = 0; i < args->length(); ++i) {
     Expression* arg = args->at(i);
     RECURSE(Visit(arg));
   }
 
   VariableProxy* proxy = expr->expression()->AsVariableProxy();
   if (proxy != NULL && proxy->var()->is_possibly_eval(isolate())) {
@@ skipping 245 matching lines @@
 void AstTyper::VisitModuleUrl(ModuleUrl* module) {
 }
 
 
 void AstTyper::VisitModuleStatement(ModuleStatement* stmt) {
   RECURSE(Visit(stmt->body()));
 }
 
 
 } }  // namespace v8::internal