[heap] Remove PromotionMode used by Scavenger

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 731 matching lines @@
   CcTest::CollectGarbage(NEW_SPACE);
 
   CHECK(!WeakPointerCleared);
 
   // Mark-compact treats weak reference properly.
   CcTest::CollectGarbage(OLD_SPACE);
 
   CHECK(WeakPointerCleared);
 }
 
-TEST(DoNotPromoteWhiteObjectsOnScavenge) {
-  CcTest::InitializeVM();
-  Isolate* isolate = CcTest::i_isolate();
-  Heap* heap = isolate->heap();
-  Factory* factory = isolate->factory();
-
-  HandleScope scope(isolate);
-  Handle<Object> white = factory->NewStringFromStaticChars("white");
-
-  CHECK(Marking::IsWhite(ObjectMarking::MarkBitFrom(HeapObject::cast(*white))));
-
-  CcTest::CollectGarbage(NEW_SPACE);
-
-  CHECK(heap->InNewSpace(*white));
-}
-
-TEST(PromoteGreyOrBlackObjectsOnScavenge) {
-  CcTest::InitializeVM();
-  Isolate* isolate = CcTest::i_isolate();
-  Heap* heap = isolate->heap();
-  Factory* factory = isolate->factory();
-
-  HandleScope scope(isolate);
-  Handle<Object> marked = factory->NewStringFromStaticChars("marked");
-
-  IncrementalMarking* marking = heap->incremental_marking();
-  marking->Stop();
-  heap->StartIncrementalMarking(i::Heap::kNoGCFlags,
-                                i::GarbageCollectionReason::kTesting);
-  while (
-      Marking::IsWhite(ObjectMarking::MarkBitFrom(HeapObject::cast(*marked)))) {
-    marking->Step(MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD,
-                  IncrementalMarking::DO_NOT_FORCE_COMPLETION, StepOrigin::kV8);
-  }
-
-  CcTest::CollectGarbage(NEW_SPACE);
-
-  CHECK(!heap->InNewSpace(*marked));
-}
-
 TEST(BytecodeArray) {
   static const uint8_t kRawBytes[] = {0xc3, 0x7e, 0xa5, 0x5a};
   static const int kRawBytesSize = sizeof(kRawBytes);
   static const int kFrameSize = 32;
   static const int kParameterCount = 2;
 
   i::FLAG_manual_evacuation_candidates_selection = true;
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   Heap* heap = isolate->heap();
@@ skipping 6303 matching lines @@
       chunk, chunk->area_end() - kPointerSize, chunk->area_end());
   slots[chunk->area_end() - kPointerSize] = false;
   RememberedSet<OLD_TO_NEW>::Iterate(chunk, [&slots](Address addr) {
     CHECK(slots[addr]);
     return KEEP_SLOT;
   });
 }
 
 }  // namespace internal
 }  // namespace v8