Change indexed load and store IL instructions to fit with SSA backend.

vm/flow_graph_compiler_x64.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_COMPILER_X64_H_
 #define VM_FLOW_GRAPH_COMPILER_X64_H_
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #error Include flow_graph_compiler.h instead of flow_graph_compiler_x64.h.
 #endif
@@ skipping 131 matching lines @@
                             Register temp_reg,
                             Label* deopt);
 
   // Returns pc-offset (in bytes) of the pc after the call, can be used to emit
   // pc-descriptor information.
   intptr_t EmitInstanceCall(ExternalLabel* target_label,
                             const ICData& ic_data,
                             const Array& arguments_descriptor,
                             intptr_t argument_count);
 
-  void EmitLoadIndexedGeneric(LoadIndexedComp* comp);
   void EmitTestAndCall(const ICData& ic_data,
                        Register class_id_reg,
                        intptr_t arg_count,
                        const Array& arg_names,
                        Label* deopt,
                        Label* done,  // Can be NULL, which means fallthrough.
                        intptr_t deopt_id,
                        intptr_t token_index,
                        intptr_t try_index,
                        BitmapBuilder* stack_bitmap);
@@ skipping 159 matching lines @@
   // that should be used when deoptimizing we store it in this variable.
   // In future AddDeoptStub should be moved out of the instruction template.
   Environment* pending_deoptimization_env_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_X64_H_