Internalize strings in-place

src/compiler/access-builder.h

 // Copyright 2014 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_COMPILER_ACCESS_BUILDER_H_
 #define V8_COMPILER_ACCESS_BUILDER_H_
 
 #include "src/base/compiler-specific.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/elements-kind.h"
@@ skipping 154 matching lines @@
 
   // Provides access to String::length() field.
   static FieldAccess ForStringLength();
 
   // Provides access to ConsString::first() field.
   static FieldAccess ForConsStringFirst();
 
   // Provides access to ConsString::second() field.
   static FieldAccess ForConsStringSecond();
 
+  // Provides access to ThinString::actual() field.
+  static FieldAccess ForThinStringActual();
+
   // Provides access to SlicedString::offset() field.
   static FieldAccess ForSlicedStringOffset();
 
   // Provides access to SlicedString::parent() field.
   static FieldAccess ForSlicedStringParent();
 
   // Provides access to ExternalString::resource_data() field.
   static FieldAccess ForExternalStringResourceData();
 
   // Provides access to ExternalOneByteString characters.
@@ skipping 73 matching lines @@
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(AccessBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_ACCESS_BUILDER_H_