Provide baseline for experimental GC implementation.

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 86f105f2c971234f48641e82c00b5204a5ac2021..0b5b866e305f7a6f2b47046961bd5f8184422754 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/test-mark-compact.cc
@@ -228,6 +228,8 @@ TEST(MarkCompactCollector) {
 }
 
 
+// TODO(gc): compaction of map space is temporary removed from GC.
+#if 0
 static Handle<Map> CreateMap() {
   return Factory::NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
 }
@@ -256,7 +258,7 @@ TEST(MapCompact) {
   // And now map pointers should be encodable again.
   CHECK(Heap::map_space()->MapPointersEncodable());
 }
-
+#endif
 
 static int gc_starts = 0;
 static int gc_ends = 0;