[heap] Exclude the owner of the linear allocation area from evacuation.

test/cctest/heap/test-array-buffer-tracker.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/api.h"
 #include "src/heap/array-buffer-tracker.h"
 #include "src/isolate.h"
 #include "test/cctest/cctest.h"
 #include "test/cctest/heap/heap-utils.h"
 
@@ skipping 109 matching lines @@
   heap::AbandonCurrentlyFreeMemory(heap->old_space());
 
   v8::HandleScope handle_scope(isolate);
   Local<v8::ArrayBuffer> ab1 = v8::ArrayBuffer::New(isolate, 100);
   Handle<JSArrayBuffer> buf1 = v8::Utils::OpenHandle(*ab1);
   CHECK(IsTracked(*buf1));
   heap::GcAndSweep(heap, NEW_SPACE);
   heap::GcAndSweep(heap, NEW_SPACE);
 
   Page* page_before_gc = Page::FromAddress(buf1->address());
-  page_before_gc->SetFlag(MemoryChunk::FORCE_EVACUATION_CANDIDATE_FOR_TESTING);
+  heap::ForceEvacuationCandidate(page_before_gc);
   CHECK(IsTracked(*buf1));
 
   CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
 
   Page* page_after_gc = Page::FromAddress(buf1->address());
   CHECK(IsTracked(*buf1));
 
   CHECK_NE(page_before_gc, page_after_gc);
 }
 
@@ skipping 170 matching lines @@
     Local<v8::ArrayBuffer> ab2 = v8::ArrayBuffer::New(isolate, 100);
     Handle<JSArrayBuffer> buf2 = v8::Utils::OpenHandle(*ab2);
     CHECK_NE(Page::FromAddress(buf1->address()),
              Page::FromAddress(buf2->address()));
     heap::GcAndSweep(heap, OLD_SPACE);
   }
 }
 
 }  // namespace internal
 }  // namespace v8