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

tools/codemap.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 178 matching lines @@
       dynaEntry.name = this.dynamicsNameGen_.getName(dynaEntry.name);
       dynaEntry.nameUpdated_ = true;
     }
     return dynaEntry;
   }
   return null;
 };
 
 
 /**
+ * Returns a dynamic code entry using its starting address.
+ *
+ * @param {number} addr Address.
+ */
+devtools.profiler.CodeMap.prototype.findDynamicEntryByStartAddress =
+    function(addr) {
+  var node = this.dynamics_.find(addr);
+  return node ? node.value : null;
+};
+
+
+/**
  * Returns an array of all dynamic code entries.
  */
 devtools.profiler.CodeMap.prototype.getAllDynamicEntries = function() {
   return this.dynamics_.exportValues();
 };
 
 
 /**
  * Returns an array of all static code entries.
  */
@@ skipping 40 matching lines @@
 
 
 devtools.profiler.CodeMap.NameGenerator.prototype.getName = function(name) {
   if (!(name in this.knownNames_)) {
     this.knownNames_[name] = 0;
     return name;
   }
   var count = ++this.knownNames_[name];
   return name + ' {' + count + '}';
 };