Use source position table in turbofan code.

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 5262 matching lines @@
 };
 
 int AbstractCode::instruction_size() {
   if (IsCode()) {
     return GetCode()->instruction_size();
   } else {
     return GetBytecodeArray()->length();
   }
 }
 
+ByteArray* AbstractCode::source_position_table() {
+  if (IsCode()) {
+    return GetCode()->source_position_table();
+  } else {
+    return GetBytecodeArray()->source_position_table();
+  }
+}
+
 int AbstractCode::SizeIncludingMetadata() {
   if (IsCode()) {
     return GetCode()->SizeIncludingMetadata();
   } else {
     return GetBytecodeArray()->SizeIncludingMetadata();
   }
 }
 int AbstractCode::ExecutableSize() {
   if (IsCode()) {
     return GetCode()->ExecutableSize();
@@ skipping 2745 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_