Uniform and precise source positions for inlining

src/perf-jit.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 281 matching lines @@
   debug_info.size_ = size + padding;
 
   LogWriteBytes(reinterpret_cast<const char*>(&debug_info), sizeof(debug_info));
 
   int script_line_offset = script->line_offset();
   Handle<FixedArray> line_ends(FixedArray::cast(script->line_ends()));
   Address code_start = code->instruction_start();
 
   for (SourcePositionTableIterator iterator(code->source_position_table());
        !iterator.done(); iterator.Advance()) {
-    int position = iterator.source_position();
+    int position = iterator.source_position().ScriptOffset();
     int line_number = Script::GetLineNumber(script, position);
     // Compute column.
     int relative_line_number = line_number - script_line_offset;
     int start =
         (relative_line_number == 0)
             ? 0
             : Smi::cast(line_ends->get(relative_line_number - 1))->value() + 1;
     int column_offset = position - start;
     if (relative_line_number == 0) {
       // For the case where the code is on the same line as the script tag.
@@ skipping 71 matching lines @@
   header.time_stamp_ =
       static_cast<uint64_t>(base::OS::TimeCurrentMillis() * 1000.0);
   header.flags_ = 0;
 
   LogWriteBytes(reinterpret_cast<const char*>(&header), sizeof(header));
 }
 
 #endif  // V8_OS_LINUX
 }  // namespace internal
 }  // namespace v8