[debug] fix return position computation for liveedit.

src/debug/debug.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/debug/debug.h"
 
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 49 matching lines @@
 }
 
 BreakLocation::BreakLocation(Handle<DebugInfo> debug_info, DebugBreakType type,
                              int code_offset, int position,
                              int statement_position)
     : debug_info_(debug_info),
       code_offset_(code_offset),
       type_(type),
       position_(position),
       statement_position_(statement_position) {
-#ifdef DEBUG
   if (type == DEBUG_BREAK_SLOT_AT_RETURN) {
     int return_position = 0;
     SharedFunctionInfo* shared = debug_info->shared();
     if (shared->HasSourceCode()) {
       return_position =
           std::max(shared->end_position() - shared->start_position() - 1, 0);
     }
-    CHECK_EQ(return_position, position);
-    CHECK_EQ(return_position, statement_position);
+    // TODO(yangguo): find out why return position is wrong for liveedit.
+    position_ = return_position;
+    statement_position = return_position;
   }
-#endif  // DEBUG
 }
 
 BreakLocation::Iterator* BreakLocation::GetIterator(
     Handle<DebugInfo> debug_info, BreakLocatorType type) {
   if (debug_info->abstract_code()->IsBytecodeArray()) {
     return new BytecodeArrayIterator(debug_info, type);
   } else {
     return new CodeIterator(debug_info, type);
   }
 }
@@ skipping 2491 matching lines @@
 }
 
 
 void LockingCommandMessageQueue::Clear() {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
   queue_.Clear();
 }
 
 }  // namespace internal
 }  // namespace v8