Make whether or not a Code object should be created by masm explicit

test/cctest/test-heap.cc

 // Copyright 2012 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 4928 matching lines @@
   }
   heap->CollectAllAvailableGarbage();
   // Now mortal code should be dead.
   code_chain_length_after = GetCodeChainLength(*code);
   CHECK_EQ(code_chain_length_before - 1, code_chain_length_after);
 }
 
 
 static Handle<Code> DummyOptimizedCode(Isolate* isolate) {
   i::byte buffer[i::Assembler::kMinimalBufferSize];
-  MacroAssembler masm(isolate, buffer, sizeof(buffer));
+  MacroAssembler masm(isolate, buffer, sizeof(buffer),
+                      v8::internal::CodeObjectRequired::kYes);
   CodeDesc desc;
   masm.Push(isolate->factory()->undefined_value());
   masm.Drop(1);
   masm.GetCode(&desc);
   Handle<Object> undefined(isolate->heap()->undefined_value(), isolate);
   Handle<Code> code = isolate->factory()->NewCode(
       desc, Code::ComputeFlags(Code::OPTIMIZED_FUNCTION), undefined);
   CHECK(code->IsCode());
   return code;
 }
@@ skipping 1489 matching lines @@
   isolate->IncrementJsCallsFromApiCounter();
   isolate->IncrementJsCallsFromApiCounter();
   isolate->IncrementJsCallsFromApiCounter();
   calls_per_ms = memory_reducer->SampleAndGetJsCallsPerMs(4);
   CheckDoubleEquals(2, calls_per_ms);
 }
 
 
 }  // namespace internal
 }  // namespace v8