Parallelize marking phase of mark-sweep/compact collection cycle.

test/cctest/test-mark-compact.cc

Index: test/cctest/test-mark-compact.cc
diff --git a/test/cctest/test-mark-compact.cc b/test/cctest/test-mark-compact.cc
index e4ac1b7c576b066384f379d6138211983435be60..d782fa3572b7be9d137a10671cd963be84ef4ab9 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/test-mark-compact.cc
@@ -45,31 +45,6 @@ static void InitializeVM() {
 }
 
 
-TEST(MarkingStack) {
-  int mem_size = 20 * kPointerSize;
-  byte* mem = NewArray<byte>(20*kPointerSize);
-  Address low = reinterpret_cast<Address>(mem);
-  Address high = low + mem_size;
-  MarkingStack s;
-  s.Initialize(low, high);
-
-  Address address = NULL;
-  while (!s.is_full()) {
-    s.Push(HeapObject::FromAddress(address));
-    address += kPointerSize;
-  }
-
-  while (!s.is_empty()) {
-    Address value = s.Pop()->address();
-    address -= kPointerSize;
-    CHECK_EQ(address, value);
-  }
-
-  CHECK_EQ(NULL, address);
-  DeleteArray(mem);
-}
-
-
 TEST(Promotion) {
   // Ensure that we get a compacting collection so that objects are promoted
   // from new space.