Debugger: use debug break slots to break at function exit.

src/liveedit.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #include "src/v8.h"
 
 #include "src/liveedit.h"
 
 #include "src/code-stubs.h"
@@ skipping 1170 matching lines @@
     }
     shared_info->DisableOptimization(kLiveEdit);
     // Update the type feedback vector, if needed.
     MaybeHandle<TypeFeedbackVector> feedback_vector =
         compile_info_wrapper.GetFeedbackVector();
     if (!feedback_vector.is_null()) {
       shared_info->set_feedback_vector(*feedback_vector.ToHandleChecked());
     }
   }
 
-  if (shared_info->debug_info()->IsDebugInfo()) {
-    Handle<DebugInfo> debug_info(DebugInfo::cast(shared_info->debug_info()));
-    Handle<Code> new_original_code =
-        isolate->factory()->CopyCode(compile_info_wrapper.GetFunctionCode());
-    debug_info->set_original_code(*new_original_code);
-  }
-
   int start_position = compile_info_wrapper.GetStartPosition();
   int end_position = compile_info_wrapper.GetEndPosition();
   shared_info->set_start_position(start_position);
   shared_info->set_end_position(end_position);
 
   LiteralFixer::PatchLiterals(&compile_info_wrapper, shared_info, isolate);
 
   shared_info->set_construct_stub(
       isolate->builtins()->builtin(Builtins::kJSConstructStubGeneric));
 
@@ skipping 851 matching lines @@
   isolate_->active_function_info_listener()->FunctionCode(code);
 }
 
 
 bool LiveEditFunctionTracker::IsActive(Isolate* isolate) {
   return isolate->active_function_info_listener() != NULL;
 }
 
 }  // namespace internal
 }  // namespace v8