[heap] Refactor MC and introduce MarkCompactCollectorBase

src/heap/heap.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/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/assembler-inl.h"
 #include "src/ast/context-slot-cache.h"
@@ skipping 6386 matching lines @@
   }
   return false;
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
+const char* AllocationSpaceName(AllocationSpace space) {
+  switch (space) {
+    case NEW_SPACE:
+      return "NEW_SPACE";
+    case OLD_SPACE:
+      return "OLD_SPACE";
+    case CODE_SPACE:
+      return "CODE_SPACE";
+    case MAP_SPACE:
+      return "MAP_SPACE";
+    case LO_SPACE:
+      return "LO_SPACE";
+    default:
+      UNREACHABLE();
+  }
+  return NULL;
+}
+
 }  // namespace internal
 }  // namespace v8