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

src/heap/mark-compact.cc

 // Copyright 2012 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/heap/mark-compact.h"
 
 #include "src/base/atomicops.h"
 #include "src/base/bits.h"
 #include "src/base/sys-info.h"
 #include "src/code-stubs.h"
@@ skipping 3756 matching lines @@
     // Clear sweeping flags indicating that marking bits are still intact.
     p->ClearWasSwept();
 
     if (p->IsFlagSet(Page::RESCAN_ON_EVACUATION) ||
         p->IsEvacuationCandidate()) {
       // Will be processed in EvacuateNewSpaceAndCandidates.
       DCHECK(evacuation_candidates_.length() > 0);
       continue;
     }
 
+    if (p->IsFlagSet(Page::NEVER_ALLOCATE_ON_PAGE)) {
+      // We need to sweep the page to get it into an iterable state again. Note
+      // that this adds unusable memory into the free list that is later on
+      // (in the free list) dropped again. Since we only use the flag for
+      // testing this is fine.
+      Sweep<SWEEP_ONLY, SWEEP_ON_MAIN_THREAD, IGNORE_SKIP_LIST,
+            IGNORE_FREE_SPACE>(space, nullptr, p, nullptr);
+      continue;
+    }
+
     // One unused page is kept, all further are released before sweeping them.
     if (p->LiveBytes() == 0) {
       if (unused_page_present) {
         if (FLAG_gc_verbose) {
           PrintIsolate(isolate(), "sweeping: released page: %p", p);
         }
         space->ReleasePage(p);
         continue;
       }
       unused_page_present = true;
@@ skipping 172 matching lines @@
     MarkBit mark_bit = Marking::MarkBitFrom(host);
     if (Marking::IsBlack(mark_bit)) {
       RelocInfo rinfo(isolate(), pc, RelocInfo::CODE_TARGET, 0, host);
       RecordRelocSlot(&rinfo, target);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8