Fix regression test from r11556 for no-snapshot.

test/cctest/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 
 #include <stdlib.h>
 
 #include "v8.h"
 
 #include "execution.h"
 #include "factory.h"
 #include "macro-assembler.h"
 #include "global-handles.h"
@@ skipping 1741 matching lines @@
 // Test that map transitions are cleared and maps are collected with
 // incremental marking as well.
 TEST(Regress1465) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_trace_incremental_marking = true;
   InitializeVM();
   v8::HandleScope scope;
 
   #define TRANSITION_COUNT 256
   for (int i = 0; i < TRANSITION_COUNT; i++) {
-    EmbeddedVector<char, 32> buffer;
-    OS::SNPrintF(buffer, "var o = {}; o.prop%d = %d;", i);
+    EmbeddedVector<char, 64> buffer;
+    OS::SNPrintF(buffer, "var o = new Object; o.prop%d = %d;", i, i);
     CompileRun(buffer.start());
   }
-  CompileRun("var root = {};");
+  CompileRun("var root = new Object;");
   Handle<JSObject> root =
       v8::Utils::OpenHandle(
           *v8::Handle<v8::Object>::Cast(
               v8::Context::GetCurrent()->Global()->Get(v8_str("root"))));
 
   // Count number of live transitions before marking.
   int transitions_before = CountMapTransitions(root->map());
   CompileRun("%DebugPrint(root);");
   CHECK_EQ(TRANSITION_COUNT, transitions_before);
 
   // Go through all incremental marking steps in one swoop.
   IncrementalMarking* marking = HEAP->incremental_marking();
   CHECK(marking->IsStopped());
   marking->Start();
   CHECK(marking->IsMarking());
   while (!marking->IsComplete()) {
     marking->Step(MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
   }
   CHECK(marking->IsComplete());
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
   CHECK(marking->IsStopped());
 
   // Count number of live transitions after marking.  Note that one transition
   // is left, because 'o' still holds an instance of one transition target.
   int transitions_after = CountMapTransitions(root->map());
   CompileRun("%DebugPrint(root);");
   CHECK_EQ(1, transitions_after);
 }