Intrinsify UserTag operations on all architectures

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 6652 matching lines @@
 
 
 class UserTag : public Instance {
  public:
   uword tag() const { return raw_ptr()->tag(); }
   void set_tag(uword t) const {
     ASSERT(t >= UserTags::kUserTagIdOffset);
     ASSERT(t < UserTags::kUserTagIdOffset + UserTags::kMaxUserTags);
     raw_ptr()->tag_ = t;
   };
+  static intptr_t tag_offset() { return OFFSET_OF(RawUserTag, tag_); }
 
   RawString* label() const {
     return raw_ptr()->label_;
   }
 
   void MakeActive() const;
   static void ClearActive();
 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawUserTag));
@@ skipping 151 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_