Internalize strings in-place

src/heap/objects-visiting.cc

 // Copyright 2011 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/objects-visiting.h"
 
 #include "src/heap/mark-compact-inl.h"
 #include "src/heap/objects-visiting-inl.h"
 
 namespace v8 {
@@ skipping 23 matching lines @@
         } else {
           return kVisitConsString;
         }
 
       case kSlicedStringTag:
         return kVisitSlicedString;
 
       case kExternalStringTag:
         return GetVisitorIdForSize(kVisitDataObject, kVisitDataObjectGeneric,
                                    instance_size, has_unboxed_fields);
+
+      case kThinStringTag:
+        return kVisitThinString;
     }
     UNREACHABLE();
   }
 
   switch (instance_type) {
     case BYTE_ARRAY_TYPE:
       return kVisitByteArray;
 
     case BYTECODE_ARRAY_TYPE:
       return kVisitBytecodeArray;
@@ skipping 343 matching lines @@
 };
 
 
 template Object* VisitWeakList<Context>(Heap* heap, Object* list,
                                         WeakObjectRetainer* retainer);
 
 template Object* VisitWeakList<AllocationSite>(Heap* heap, Object* list,
                                                WeakObjectRetainer* retainer);
 }  // namespace internal
 }  // namespace v8