[heap] Add basic infrastructure for Minor Mark-Compact collector

src/globals.h

 // 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.
 
 #ifndef V8_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 559 matching lines @@
   }
   UNREACHABLE();
   return os;
 }
 
 enum MinimumCapacity {
   USE_DEFAULT_MINIMUM_CAPACITY,
   USE_CUSTOM_MINIMUM_CAPACITY
 };
 
-enum GarbageCollector { SCAVENGER, MARK_COMPACTOR };
+enum GarbageCollector { SCAVENGER, MARK_COMPACTOR, MINOR_MARK_COMPACTOR };
 
 enum Executability { NOT_EXECUTABLE, EXECUTABLE };
 
 enum VisitMode {
   VISIT_ALL,
   VISIT_ALL_IN_SCAVENGE,
   VISIT_ALL_IN_SWEEP_NEWSPACE,
   VISIT_ONLY_STRONG,
   VISIT_ONLY_STRONG_FOR_SERIALIZATION,
   VISIT_ONLY_STRONG_ROOT_LIST,
@@ skipping 687 matching lines @@
   UNREACHABLE();
   return os;
 }
 
 }  // namespace internal
 }  // namespace v8
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_