[wasm] prototype for breakpoint support.

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 5622 matching lines @@
 ScriptOriginOptions Script::origin_options() {
   return ScriptOriginOptions((flags() & kOriginOptionsMask) >>
                              kOriginOptionsShift);
 }
 void Script::set_origin_options(ScriptOriginOptions origin_options) {
   DCHECK(!(origin_options.Flags() & ~((1 << kOriginOptionsSize) - 1)));
   set_flags((flags() & ~kOriginOptionsMask) |
             (origin_options.Flags() << kOriginOptionsShift));
 }
 
+SharedFunctionInfo* DebugInfo::shared() const {
+  DCHECK(has_shared());
+  return SharedFunctionInfo::cast(READ_FIELD(this, kSharedFunctionInfoIndex));
+}
+void DebugInfo::set_shared(SharedFunctionInfo* shared, WriteBarrierMode mode) {
+  WRITE_FIELD(this, kSharedFunctionInfoIndex, shared);
+  CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kSharedFunctionInfoIndex, shared,
+                            mode);
+}
+bool DebugInfo::has_shared() const {
+  return !READ_FIELD(this, kSharedFunctionInfoIndex)->IsUndefined(GetIsolate());
+}
 
-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)
@@ skipping 2312 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_