[heap] Remove border page

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 7092 matching lines @@
 
   RememberedSet<OLD_TO_NEW>::RemoveRange(
       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;
   });
 }
 
+TEST(EmptyIntermediateGeneration) {
+  CcTest::InitializeVM();
+  Heap* heap = CcTest::heap();
+  heap::GcAndSweep(heap, OLD_SPACE);
+  v8::HandleScope scope(CcTest::isolate());
+  {
+    v8::HandleScope temp_scope(CcTest::isolate());
+    heap::SimulateFullSpace(heap->new_space());
+  }
+  heap::GcAndSweep(heap, OLD_SPACE);
+  for (Page* p : *heap->new_space()) {
+    CHECK(!p->InIntermediateGeneration());
+  }
+}
+
 }  // namespace internal
 }  // namespace v8