Add GC handling for new field in DeoptimizedFrameInfo.

src/runtime.cc

 // 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 10729 matching lines @@
   Object* GetParameter(int index) {
     return is_optimized_
         ? deoptimized_frame_->GetParameter(index)
         : frame_->GetParameter(index);
   }
   Object* GetExpression(int index) {
     return is_optimized_
         ? deoptimized_frame_->GetExpression(index)
         : frame_->GetExpression(index);
   }
-  Address GetPc() {
+  int GetSourcePosition() {
     return is_optimized_
-        ? deoptimized_frame_->GetPc()
-        : frame_->pc();
+        ? deoptimized_frame_->GetSourcePosition()
+        : frame_->LookupCode()->SourcePosition(frame_->pc());
   }
 
   // To inspect all the provided arguments the frame might need to be
   // replaced with the arguments frame.
   void SetArgumentsFrame(JavaScriptFrame* frame) {
     ASSERT(has_adapted_arguments_);
     frame_ = frame;
     is_optimized_ = frame_->is_optimized();
     ASSERT(!is_optimized_);
   }
@@ skipping 87 matching lines @@
   FrameInspector frame_inspector(it.frame(), inlined_jsframe_index, isolate);
 
   // Traverse the saved contexts chain to find the active context for the
   // selected frame.
   SaveContext* save = FindSavedContextForFrame(isolate, it.frame());
 
   // Get the frame id.
   Handle<Object> frame_id(WrapFrameId(it.frame()->id()), isolate);
 
   // Find source position in unoptimized code.
-  Handle<JSFunction> function(JSFunction::cast(frame_inspector.GetFunction()));
-  Handle<SharedFunctionInfo> shared(function->shared());
-  int position = shared->code()->SourcePosition(frame_inspector.GetPc());
+  int position = frame_inspector.GetSourcePosition();
 
   // Check for constructor frame. Inlined frames cannot be construct calls.
   bool inlined_frame = is_optimized && inlined_jsframe_index != 0;
   bool constructor = !inlined_frame && it.frame()->IsConstructor();
 
   // Get scope info and read from it for local variable information.
+  Handle<JSFunction> function(JSFunction::cast(frame_inspector.GetFunction()));
+  Handle<SharedFunctionInfo> shared(function->shared());
   Handle<ScopeInfo> scope_info(shared->scope_info());
   ASSERT(*scope_info != ScopeInfo::Empty());
 
   // Get the locals names and values into a temporary array.
   //
   // TODO(1240907): Hide compiler-introduced stack variables
   // (e.g. .result)?  For users of the debugger, they will probably be
   // confusing.
   Handle<FixedArray> locals =
       isolate->factory()->NewFixedArray(scope_info->LocalCount() * 2);
@@ skipping 2769 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags);
   }
 }
 
 
 } }  // namespace v8::internal