Re-revert "Flush parallel recompilation queues on context dispose notification" (r15883).

src/factory.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 1201 matching lines @@
   int literals_array_size = number_of_literals;
   // If the function contains object, regexp or array literals,
   // allocate extra space for a literals array prefix containing the
   // context.
   if (number_of_literals > 0) {
     literals_array_size += JSFunction::kLiteralsPrefixSize;
   }
   shared->set_num_literals(literals_array_size);
   if (is_generator) {
     shared->set_instance_class_name(isolate()->heap()->Generator_string());
-    shared->DisableOptimization("generator");
   }
   return shared;
 }
 
 
 Handle<JSMessageObject> Factory::NewJSMessageObject(
     Handle<String> type,
     Handle<JSArray> arguments,
     int start_position,
     int end_position,
@@ skipping 377 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal