Make rewind work on DBC

runtime/vm/simulator_dbc.h

 // Copyright (c) 2016, 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 RUNTIME_VM_SIMULATOR_DBC_H_
 #define RUNTIME_VM_SIMULATOR_DBC_H_
 
 #ifndef RUNTIME_VM_SIMULATOR_H_
 #error Do not include simulator_dbc.h directly; use simulator.h.
 #endif
@@ skipping 105 matching lines @@
                    uword target);
 
   void Invoke(Thread* thread,
               RawObject** call_base,
               RawObject** call_top,
               RawObjectPool** pp,
               uint32_t** pc,
               RawObject*** FP,
               RawObject*** SP);
 
+  bool Deoptimize(Thread* thread,
+                  RawObjectPool** pp,
+                  uint32_t** pc,
+                  RawObject*** FP,
+                  RawObject*** SP,
+                  bool is_lazy);
+
   void InlineCacheMiss(int checked_args,
                        Thread* thread,
                        RawICData* icdata,
                        RawObject** call_base,
                        RawObject** top,
                        uint32_t* pc,
                        RawObject** FP,
                        RawObject** SP);
 
   void InstanceCall1(Thread* thread,
@@ skipping 24 matching lines @@
     last_setjmp_buffer_ = buffer;
   }
 
   friend class SimulatorSetjmpBuffer;
   DISALLOW_COPY_AND_ASSIGN(Simulator);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_SIMULATOR_DBC_H_