Range info propagation through HBoundsCheck.

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4011 matching lines @@
   virtual int RedefinedOperandIndex() V8_OVERRIDE { return 0; }
   virtual bool IsPurelyInformativeDefinition() V8_OVERRIDE {
     return skip_check();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(BoundsCheck)
 
  protected:
   friend class HBoundsCheckBaseIndexInformation;
 
+  virtual Range* InferRange(Zone* zone) V8_OVERRIDE;
+
   virtual bool DataEquals(HValue* other) V8_OVERRIDE { return true; }
   bool skip_check_;
   HValue* base_;
   int offset_;
   int scale_;
   bool allow_equality_;
 
  private:
   // Normally HBoundsCheck should be created using the
   // HGraphBuilder::AddBoundsCheck() helper.
@@ skipping 3385 matching lines @@
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_