Reland of "[cctest] Add tests for aborting compaction of pages"

src/heap/spaces.h

 // Copyright 2011 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.
 
 #ifndef V8_HEAP_SPACES_H_
 #define V8_HEAP_SPACES_H_
 
 #include "src/allocation.h"
 #include "src/atomic-utils.h"
 #include "src/base/atomicops.h"
@@ skipping 305 matching lines @@
     // Even if the mutator writes to them they will be kept black and a white
     // to grey transition is performed in the value.
     HAS_PROGRESS_BAR,
 
     // This flag is intended to be used for testing. Works only when both
     // FLAG_stress_compaction and FLAG_manual_evacuation_candidates_selection
     // are set. It forces the page to become an evacuation candidate at next
     // candidates selection cycle.
     FORCE_EVACUATION_CANDIDATE_FOR_TESTING,
 
+    // This flag is inteded to be used for testing.
+    NEVER_ALLOCATE_ON_PAGE,
+
     // The memory chunk is already logically freed, however the actual freeing
     // still has to be performed.
     PRE_FREED,
 
     // |COMPACTION_WAS_ABORTED|: Indicates that the compaction in this page
     //   has been aborted and needs special handling by the sweeper.
     COMPACTION_WAS_ABORTED,
 
     // Last flag, keep at bottom.
     NUM_MEMORY_CHUNK_FLAGS
@@ skipping 339 matching lines @@
 
   bool NeverEvacuate() { return IsFlagSet(NEVER_EVACUATE); }
 
   void MarkNeverEvacuate() { SetFlag(NEVER_EVACUATE); }
 
   bool IsEvacuationCandidate() {
     DCHECK(!(IsFlagSet(NEVER_EVACUATE) && IsFlagSet(EVACUATION_CANDIDATE)));
     return IsFlagSet(EVACUATION_CANDIDATE);
   }
 
+  bool CanAllocate() {
+    return !IsEvacuationCandidate() && !IsFlagSet(NEVER_ALLOCATE_ON_PAGE);
+  }
+
   bool ShouldSkipEvacuationSlotRecording() {
     return (flags_ & kSkipEvacuationSlotsRecordingMask) != 0;
   }
 
   inline SkipList* skip_list() { return skip_list_; }
 
   inline void set_skip_list(SkipList* skip_list) { skip_list_ = skip_list; }
 
   inline SlotsBuffer* slots_buffer() { return slots_buffer_; }
 
@@ skipping 2453 matching lines @@
     count = 0;
   }
   // Must be small, since an iteration is used for lookup.
   static const int kMaxComments = 64;
 };
 #endif
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_SPACES_H_