Use parallel move resolver for optimized try-catch.

runtime/vm/intermediate_language.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_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 4233 matching lines @@
 
 class StoreVMFieldInstr : public TemplateDefinition<2> {
  public:
   StoreVMFieldInstr(Value* dest,
                     intptr_t offset_in_bytes,
                     Value* value,
                     const AbstractType& type)
       : offset_in_bytes_(offset_in_bytes), type_(type) {
     ASSERT(type.IsZoneHandle());  // May be null if field is not an instance.
     SetInputAt(kValuePos, value);
-    SetInputAt(kDestPos, dest);
+    SetInputAt(kObjectPos, dest);
   }
 
   enum {
     kValuePos = 0,
-    kDestPos = 1
+    kObjectPos = 1
   };
 
   DECLARE_INSTRUCTION(StoreVMField)
   virtual CompileType* ComputeInitialType() const;
 
   Value* value() const { return inputs_[kValuePos]; }
-  Value* dest() const { return inputs_[kDestPos]; }
+  Value* dest() const { return inputs_[kObjectPos]; }
   intptr_t offset_in_bytes() const { return offset_in_bytes_; }
   const AbstractType& type() const { return type_; }
 
   virtual void PrintOperandsTo(BufferFormatter* f) const;
 
   virtual bool CanDeoptimize() const { return false; }
 
   virtual EffectSet Effects() const { return EffectSet::None(); }
 
   virtual bool MayThrow() const { return false; }
@@ skipping 2777 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_