Find correct source position in inlined functions on debug break.

src/deoptimizer.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 731 matching lines @@
     ASSERT(0 <= index && index < parameters_count());
     return parameters_[index];
   }
 
   // Get an expression from the expression stack.
   Object* GetExpression(int index) {
     ASSERT(0 <= index && index < expression_count());
     return expression_stack_[index];
   }
 
+  Address GetPc() {
+    return reinterpret_cast<Address>(pc_);
+  }
+
  private:
   // Set the frame function.
   void SetFunction(JSFunction* function) {
     function_ = function;
   }
 
   // Set an incoming argument.
   void SetParameter(int index, Object* obj) {
     ASSERT(0 <= index && index < parameters_count());
     parameters_[index] = obj;
   }
 
   // Set an expression on the expression stack.
   void SetExpression(int index, Object* obj) {
     ASSERT(0 <= index && index < expression_count());
     expression_stack_[index] = obj;
   }
 
   JSFunction* function_;
   int parameters_count_;
   int expression_count_;
   Object** parameters_;
   Object** expression_stack_;
+  intptr_t pc_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_