Fix issue 553: function frame is skipped in profile when compare stub is called.

tools/logreader.js

 // Copyright 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 121 matching lines @@
  */
 devtools.profiler.LogReader.prototype.processLogChunk = function(chunk) {
   this.processLog_(chunk.split('\n'));
 };
 
 
 /**
  * Processes stack record.
  *
  * @param {number} pc Program counter.
+ * @param {number} func JS Function.
  * @param {Array.<string>} stack String representation of a stack.
  * @return {Array.<number>} Processed stack.
  */
-devtools.profiler.LogReader.prototype.processStack = function(pc, stack) {
-  var fullStack = [pc];
+devtools.profiler.LogReader.prototype.processStack = function(pc, func, stack) {
+  var fullStack = func ? [pc, func] : [pc];
   var prevFrame = pc;
   for (var i = 0, n = stack.length; i < n; ++i) {
     var frame = stack[i];
     var firstChar = frame.charAt(0);
     if (firstChar == '+' || firstChar == '-') {
       // An offset from the previous frame.
       prevFrame += parseInt(frame, 16);
       fullStack.push(prevFrame);
     // Filter out possible 'overflow' string.
     } else if (firstChar != 'o') {
@@ skipping 154 matching lines @@
  * @param {Array.<string>} cmd Parsed command.
  * @private
  */
 devtools.profiler.LogReader.prototype.processRepeat_ = function(count, cmd) {
   // Replace the repeat-prefixed command from backrefs list with a non-prefixed.
   this.backRefs_[0] = cmd.join(',');
   for (var i = 0; i < count; ++i) {
     this.dispatchLogRow_(cmd);
   }
 };