[interpreter, debugger] abstraction for source position calculation.

src/runtime/runtime-internal.cc

 // Copyright 2014 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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/ast/prettyprinter.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 377 matching lines @@
     Object* script = fun->shared()->script();
     if (script->IsScript() &&
         !(Script::cast(script)->source()->IsUndefined())) {
       Handle<Script> casted_script(Script::cast(script));
       // Compute the location from the function and the relocation info of the
       // baseline code. For optimized code this will use the deoptimization
       // information to get canonical location information.
       List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
       it.frame()->Summarize(&frames);
       FrameSummary& summary = frames.last();
-      int pos = summary.code()->SourcePosition(summary.pc());
+      int pos = summary.abstract_code()->SourcePosition(summary.code_offset());
       *target = MessageLocation(casted_script, pos, pos + 1, handle(fun));
       return true;
     }
   }
   return false;
 }
 
 
 Handle<String> RenderCallSite(Isolate* isolate, Handle<Object> object) {
   MessageLocation location;
@@ skipping 75 matching lines @@
   std::stringstream stats_stream;
   isolate->runtime_state()->runtime_call_stats()->Print(stats_stream);
   Handle<String> result =
       isolate->factory()->NewStringFromAsciiChecked(stats_stream.str().c_str());
   isolate->runtime_state()->runtime_call_stats()->Reset();
   return *result;
 }
 
 }  // namespace internal
 }  // namespace v8