Use zone when allocating handles in FlowGraphCompiler assembling operations. Add profiling VM tags…

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)          /* isolate is idle and is_runnable() */                     \
   V(LoadWait)      /* isolate is idle and !is_runnable() */                    \
   V(VM)            /* Catch all */                                             \
   V(CompileOptimized)                                                          \
   V(CompileUnoptimized)                                                        \
   V(CompileClass)                                                              \
   V(CompileTopLevel)                                                           \
   V(CompileScanner)                                                            \
+  V(CompileParseFunction)                                                      \
+  V(CompileParseRegExp)                                                        \
+  V(CompileFlowGraphBuilder)                                                   \
   V(Dart)                                                                      \
   V(GCNewSpace)                                                                \
   V(GCOldSpace)                                                                \
   V(Embedder)                                                                  \
   V(Runtime)                                                                   \
   V(Native)                                                                    \
 
 class VMTag : public AllStatic {
  public:
   enum VMTagId {
@@ skipping 23 matching lines @@
   struct TagEntry {
     const char* name;
     uword id;
   };
   static TagEntry entries_[];
 };
 
 
 class VMTagScope : StackResource {
  public:
-  VMTagScope(Isolate* isolate, uword tag);
+  VMTagScope(Isolate* isolate, uword tag, bool conditional_set = true);
   ~VMTagScope();
  private:
   uword previous_tag_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(VMTagScope);
 };
 
 
 class VMTagCounters {
@@ skipping 21 matching lines @@
   static bool IsUserTag(uword tag_id) {
     return (tag_id >= kUserTagIdOffset) &&
            (tag_id < kUserTagIdOffset + kMaxUserTags);
   }
 };
 
 
 }  // namespace dart
 
 #endif  // VM_TAGS_H_