Implement is32 LoadIndexed.

runtime/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 119 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);
+
   intptr_t StackSize() const;
 
   // Returns assembler label associated with the given block entry.
   Label* GetBlockLabel(BlockEntryInstr* block_entry) const;
 
   // Returns true if the next block after current in the current block order
   // is the given block.
   bool IsNextBlock(TargetEntryInstr* block_entry) const;
 
   void AddExceptionHandler(intptr_t try_index, intptr_t pc_offset);
@@ skipping 143 matching lines @@
   const DeoptReasonId reason_;
   GrowableArray<Register> registers_;
   Label entry_label_;
 
   DISALLOW_COPY_AND_ASSIGN(DeoptimizationStub);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_X64_H_