Make compilation VM tags more fine grained

runtime/vm/tags.h

 // Copyright (c) 2013, 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_TAGS_H_
 #define VM_TAGS_H_
 
 #include "vm/allocation.h"
 
 namespace dart {
 
 class Isolate;
 class JSONObject;
 class RuntimeEntry;
 
 #define VM_TAG_LIST(V)                                                         \
   V(Idle)                                                                      \
   V(VM) /* Catch all */                                                        \
-  V(Compile)                                                                   \
+  V(CompileOptimized)                                                          \
+  V(CompileUnoptimized)                                                        \
+  V(CompileTopLevel)                                                           \
+  V(CompileScanner)                                                            \
   V(Script)                                                                    \
   V(GCNewSpace)                                                                \
   V(GCOldSpace)                                                                \
   V(Runtime)                                                                   \
   V(Native)                                                                    \
 
 class VMTag : public AllStatic {
  public:
   enum VMTagId {
     kInvalidTagId = 0,
@@ skipping 61 matching lines @@
   static bool IsUserTag(uword tag_id) {
     return (tag_id >= kUserTagIdOffset) &&
            (tag_id < kUserTagIdOffset + kMaxUserTags);
   }
 };
 
 
 }  // namespace dart
 
 #endif  // VM_TAGS_H_