Revert r40306 because of crash.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, 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_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 8358 matching lines @@
     return fixed_parameter_count_;
   }
 
   const Code& code() const { return parsed_function_->code(); }
 
   Environment* DeepCopy(Isolate* isolate) const {
     return DeepCopy(isolate, Length());
   }
 
   void DeepCopyTo(Isolate* isolate, Instruction* instr) const;
-  void DeepCopyToOuter(Isolate* isolate,
-                       Instruction* instr,
-                       intptr_t input_count) const;
+  void DeepCopyToOuter(Isolate* isolate, Instruction* instr) const;
 
   void PrintTo(BufferFormatter* f) const;
   const char* ToCString() const;
 
   // Deep copy an environment.  The 'length' parameter may be less than the
   // environment's length in order to drop values (e.g., passed arguments)
   // from the copy.
   Environment* DeepCopy(Isolate* isolate, intptr_t length) const;
 
  private:
@@ skipping 63 matching lines @@
       Isolate* isolate, bool opt) const {                                     \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_