[debugger] use source position to identify break points.

src/objects-inl.h

 // 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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 5800 matching lines @@
 
 
 ACCESSORS(DebugInfo, shared, SharedFunctionInfo, kSharedFunctionInfoIndex)
 ACCESSORS(DebugInfo, abstract_code, AbstractCode, kAbstractCodeIndex)
 ACCESSORS(DebugInfo, break_points, FixedArray, kBreakPointsStateIndex)
 
 BytecodeArray* DebugInfo::original_bytecode_array() {
   return shared()->bytecode_array();
 }
 
-SMI_ACCESSORS(BreakPointInfo, code_offset, kCodeOffsetIndex)
 SMI_ACCESSORS(BreakPointInfo, source_position, kSourcePositionIndex)
-SMI_ACCESSORS(BreakPointInfo, statement_position, kStatementPositionIndex)
 ACCESSORS(BreakPointInfo, break_point_objects, Object, kBreakPointObjectsIndex)
 
 ACCESSORS(SharedFunctionInfo, name, Object, kNameOffset)
 ACCESSORS(SharedFunctionInfo, optimized_code_map, FixedArray,
           kOptimizedCodeMapOffset)
 ACCESSORS(SharedFunctionInfo, construct_stub, Code, kConstructStubOffset)
 ACCESSORS(SharedFunctionInfo, feedback_metadata, TypeFeedbackMetadata,
           kFeedbackMetadataOffset)
 #if TRACE_MAPS
 SMI_ACCESSORS(SharedFunctionInfo, unique_id, kUniqueIdOffset)
@@ skipping 2352 matching lines @@
 #undef WRITE_INT64_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_INL_H_