[turbofan] Work towards fixing asm.js heap access.

src/compiler/simplified-lowering.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_SIMPLIFIED_LOWERING_H_
 #define V8_COMPILER_SIMPLIFIED_LOWERING_H_
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node.h"
@@ skipping 13 matching lines @@
                      SourcePositionTable* source_positions)
       : jsgraph_(jsgraph), zone_(zone), source_positions_(source_positions) {}
   ~SimplifiedLowering() {}
 
   void LowerAllNodes();
 
   // TODO(titzer): These are exposed for direct testing. Use a friend class.
   void DoAllocate(Node* node);
   void DoLoadField(Node* node);
   void DoStoreField(Node* node);
-  // TODO(turbofan): The output_type can be removed once the result of the
-  // representation analysis is stored in the node bounds.
-  void DoLoadBuffer(Node* node, MachineType output_type,
-                    RepresentationChanger* changer);
+  void DoLoadBuffer(Node* node);
   void DoStoreBuffer(Node* node);
   void DoLoadElement(Node* node);
   void DoStoreElement(Node* node);
   void DoStringAdd(Node* node);
   void DoStringEqual(Node* node);
   void DoStringLessThan(Node* node);
   void DoStringLessThanOrEqual(Node* node);
 
  private:
   JSGraph* const jsgraph_;
@@ skipping 24 matching lines @@
   Graph* graph() { return jsgraph()->graph(); }
   CommonOperatorBuilder* common() { return jsgraph()->common(); }
   MachineOperatorBuilder* machine() { return jsgraph()->machine(); }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_SIMPLIFIED_LOWERING_H_