DevTools: Tweak v8 code objects name parsing.

Source/devtools/front_end/common/ParsedURL.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 241 matching lines @@
      * @return {string}
      */
     lastPathComponentWithFragment: function()
     {
        return this.lastPathComponent + (this.fragment ? "#" + this.fragment : "");
     }
 }
 
 /**
  * @param {string} string
- * @return {?{url: string, lineNumber: (number|undefined), columnNumber: (number|undefined)}}
+ * @return {!{url: string, lineNumber: (number|undefined), columnNumber: (number|undefined)}}
  */
 WebInspector.ParsedURL.splitLineAndColumn = function(string)
 {
-    var lineColumnRegEx = /:(\d+)(:(\d+))?$/;
+    var lineColumnRegEx = /(?::(\d+))?(?::(\d+))?$/;
     var lineColumnMatch = lineColumnRegEx.exec(string);
     var lineNumber;
     var columnNumber;
-    if (!lineColumnMatch)
-        return null;
+    console.assert(lineColumnMatch);
 
-    lineNumber = parseInt(lineColumnMatch[1], 10);
-    // Immediately convert line and column to 0-based numbers.
-    lineNumber = isNaN(lineNumber) ? undefined : lineNumber - 1;
-    if (typeof(lineColumnMatch[3]) === "string") {
-        columnNumber = parseInt(lineColumnMatch[3], 10);
+    if (typeof(lineColumnMatch[1]) === "string") {
+        lineNumber = parseInt(lineColumnMatch[1], 10);
+        // Immediately convert line and column to 0-based numbers.
+        lineNumber = isNaN(lineNumber) ? undefined : lineNumber - 1;
+    }
+    if (typeof(lineColumnMatch[2]) === "string") {
+        columnNumber = parseInt(lineColumnMatch[2], 10);
         columnNumber = isNaN(columnNumber) ? undefined : columnNumber - 1;
     }
 
-    return { url: string.substring(0, string.length - lineColumnMatch[0].length), lineNumber: lineNumber, columnNumber: columnNumber};
+    return {url: string.substring(0, string.length - lineColumnMatch[0].length), lineNumber: lineNumber, columnNumber: columnNumber};
 }
 
 /**
  * @return {?WebInspector.ParsedURL}
  */
 String.prototype.asParsedURL = function()
 {
     var parsedURL = new WebInspector.ParsedURL(this.toString());
     if (parsedURL.isValid)
         return parsedURL;
     return null;
 }