Return on the polymorphic hard deopt case to ensure we don't polute phis with fake type information.

src/hydrogen.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 1388 matching lines @@
                                Maybe<int> fixed_right_arg,
                                HAllocationMode allocation_mode);
 
   HLoadNamedField* AddLoadFixedArrayLength(HValue *object);
 
   HValue* AddLoadJSBuiltin(Builtins::JavaScript builtin);
 
   HValue* EnforceNumberType(HValue* number, Type* expected);
   HValue* TruncateToNumber(HValue* value, Type** expected);
 
-  void FinishExitWithHardDeoptimization(const char* reason,
-                                        HBasicBlock* continuation);
+  void FinishExitWithHardDeoptimization(const char* reason);
 
   void AddIncrementCounter(StatsCounter* counter);
 
   class IfBuilder V8_FINAL {
    public:
     explicit IfBuilder(HGraphBuilder* builder);
     IfBuilder(HGraphBuilder* builder,
               HIfContinuation* continuation);
 
     ~IfBuilder() {
@@ skipping 370 matching lines @@
  private:
   HGraphBuilder();
 
   HValue* BuildUncheckedDictionaryElementLoadHelper(
       HValue* elements,
       HValue* key,
       HValue* hash,
       HValue* mask,
       int current_probe);
 
-  void PadEnvironmentForContinuation(HBasicBlock* from,
-                                     HBasicBlock* continuation);
-
   template <class I>
   I* AddInstructionTyped(I* instr) {
     return I::cast(AddInstruction(instr));
   }
 
   CompilationInfo* info_;
   HGraph* graph_;
   HBasicBlock* current_block_;
   int position_;
 };
@@ skipping 925 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_