Remove the LoadLocal used at the end of a temp local scope.

runtime/vm/flow_graph_builder.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_BUILDER_H_
 #define VM_FLOW_GRAPH_BUILDER_H_
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 #include "vm/allocation.h"
@@ skipping 418 matching lines @@
   Value* BuildNullValue(TokenPosition token_pos);
 
   // Returns true if the run-time type check can be eliminated.
   bool CanSkipTypeCheck(TokenPosition token_pos,
                         Value* value,
                         const AbstractType& dst_type,
                         const String& dst_name);
 
   // Helpers for allocating and deallocating temporary locals on top of the
   // expression stack.
-  LocalVariable* EnterTempLocalScope(Value* value, TokenPosition token_pos);
-  Definition* ExitTempLocalScope(LocalVariable* var, TokenPosition token_pos);
+  LocalVariable* EnterTempLocalScope(Value* value);
+  Definition* ExitTempLocalScope(Value* value);
 
   void BuildLetTempExpressions(LetNode* node);
 
   void BuildInstanceGetterConditional(InstanceGetterNode* node);
   void BuildInstanceCallConditional(InstanceCallNode* node);
 
   Thread* thread() const { return owner()->thread(); }
   Isolate* isolate() const { return owner()->isolate(); }
   Zone* zone() const { return owner()->zone(); }
 
@@ skipping 128 matching lines @@
   // Output parameters.
   GrowableArray<TargetEntryInstr**> true_successor_addresses_;
   GrowableArray<TargetEntryInstr**> false_successor_addresses_;
 
   TokenPosition condition_token_pos_;
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_BUILDER_H_