Find correct source position in inlined functions on debug break.

src/deoptimizer.h

Index: src/deoptimizer.h
diff --git a/src/deoptimizer.h b/src/deoptimizer.h
index 8b1152d52957a7da6e37ecb56c4a07d17767accd..db6a59a259bd4b4fa3d28da6c34d3bf308d459d9 100644
--- a/src/deoptimizer.h
+++ b/src/deoptimizer.h
@@ -749,6 +749,10 @@ class DeoptimizedFrameInfo : public Malloced {
     return expression_stack_[index];
   }
 
+  Address GetPc() {
+    return reinterpret_cast<Address>(pc_);
+  }
+
  private:
   // Set the frame function.
   void SetFunction(JSFunction* function) {
@@ -772,6 +776,7 @@ class DeoptimizedFrameInfo : public Malloced {
   int expression_count_;
   Object** parameters_;
   Object** expression_stack_;
+  intptr_t pc_;
 
   friend class Deoptimizer;
 };