Replaced Value by Definition in the renaming environment.

runtime/vm/flow_graph.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_FLOW_GRAPH_H_
 #define VM_FLOW_GRAPH_H_
 
 #include "vm/growable_array.h"
 #include "vm/parser.h"
 
 namespace dart {
 
 class BlockEntryInstr;
+class Definition;
 class FlowGraphBuilder;
 class GraphEntryInstr;
 class PhiInstr;
-class Value;
 
 // Class to incapsulate the construction and manipulation of the flow graph.
 class FlowGraph: public ZoneAllocated {
  public:
   FlowGraph(const FlowGraphBuilder& builder, GraphEntryInstr* graph_entry);
 
   // Function properties.
   const ParsedFunction& parsed_function() const {
     return parsed_function_;
   }
@@ skipping 45 matching lines @@
 
   void CompressPath(
       intptr_t start_index,
       intptr_t current_index,
       GrowableArray<intptr_t>* parent,
       GrowableArray<intptr_t>* label);
 
   void Rename(GrowableArray<PhiInstr*>* live_phis);
   void RenameRecursive(
       BlockEntryInstr* block_entry,
-      GrowableArray<Value*>* env,
+      GrowableArray<Definition*>* env,
       GrowableArray<PhiInstr*>* live_phis);
 
   void InsertPhis(
       const GrowableArray<BlockEntryInstr*>& preorder,
       const GrowableArray<BitVector*>& assigned_vars,
       const GrowableArray<BitVector*>& dom_frontier);
 
   void MarkLivePhis(GrowableArray<PhiInstr*>* live_phis);
 
   intptr_t current_ssa_temp_index() const { return current_ssa_temp_index_; }
@@ skipping 13 matching lines @@
   const intptr_t stack_local_count_;
   GraphEntryInstr* graph_entry_;
   GrowableArray<BlockEntryInstr*> preorder_;
   GrowableArray<BlockEntryInstr*> postorder_;
   GrowableArray<BlockEntryInstr*> reverse_postorder_;
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_H_