[interpreter] Make setting of function data more resilient.

test/cctest/heap/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 6259 matching lines @@
   CHECK(fun1->shared() == fun2->shared());
 }
 
 
 static void RemoveCodeAndGC(const v8::FunctionCallbackInfo<v8::Value>& args) {
   Isolate* isolate = CcTest::i_isolate();
   Handle<Object> obj = v8::Utils::OpenHandle(*args[0]);
   Handle<JSFunction> fun = Handle<JSFunction>::cast(obj);
   fun->ReplaceCode(*isolate->builtins()->CompileLazy());
   fun->shared()->ReplaceCode(*isolate->builtins()->CompileLazy());
+  fun->shared()->ClearBytecodeArray();  // Bytecode is code too.
   isolate->heap()->CollectAllAvailableGarbage("remove code and gc");
 }
 
 
 TEST(CanonicalSharedFunctionInfo) {
   CcTest::InitializeVM();
   v8::Isolate* isolate = CcTest::isolate();
   v8::HandleScope scope(isolate);
   v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
   global->Set(isolate, "check", v8::FunctionTemplate::New(
@@ skipping 236 matching lines @@
       byte_array->set(j, 0x31);
     }
   }
   // Re-enable old space expansion to avoid OOM crash.
   heap->set_force_oom(false);
   heap->CollectGarbage(NEW_SPACE);
 }
 
 }  // namespace internal
 }  // namespace v8