RelocInfo: fix source position decoding.

src/runtime.cc

 // Copyright 2006-2009 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 9869 matching lines @@
 // A testing entry. Returns statement position which is the closest to
 // source_position.
 static MaybeObject* Runtime_GetFunctionCodePositionFromSource(Arguments args) {
   ASSERT(args.length() == 2);
   HandleScope scope;
   CONVERT_ARG_CHECKED(JSFunction, function, 0);
   CONVERT_NUMBER_CHECKED(int32_t, source_position, Int32, args[1]);
 
   Handle<Code> code(function->code());
 
-  RelocIterator it(*code, 1 << RelocInfo::STATEMENT_POSITION);
+  RelocIterator it(*code, RelocInfo::ModeMask(RelocInfo::STATEMENT_POSITION));
   int closest_pc = 0;
   int distance = kMaxInt;
   while (!it.done()) {
     int statement_position = static_cast<int>(it.rinfo()->data());
     // Check if this break point is closer that what was previously found.
     if (source_position <= statement_position &&
         statement_position - source_position < distance) {
       closest_pc =
           static_cast<int>(it.rinfo()->pc() - code->instruction_start());
       distance = statement_position - source_position;
@@ skipping 424 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal