Reviewed by Pavel Feldman.

        Web Inspector: Wrong console output for Regexp escape sequence
        https://bugs.webkit.org/show_bug.cgi?id=31538

        Updated inspector/console-format.html

        * inspector/front-end/ConsoleView.js:
        (WebInspector.ConsoleView.createDividerElement): style issues.
        (WebInspector.ConsoleView.createFilterElement): style issues.
        (WebInspector.ConsoleView): added _customFormatters table.
        (WebInspector.ConsoleView.prototype.updateMessageRepeatCount): style isses.
        (WebInspector.ConsoleView.prototype._incrementErrorWarningCount): style issues.
        (WebInspector.ConsoleView.prototype._format): simplified delegation to formatter logic.
        (WebInspector.ConsoleView.prototype._formatobject):
        (WebInspector.ConsoleView.prototype._formatnode):
        (WebInspector.ConsoleView.prototype._printArray):
        (WebInspector.ConsoleMessage.prototype._format): commented and broke down the algorithm into parts.
        (WebInspector.ConsoleMessage.prototype._formatWithSubstitutionString.append): handle substitution string formatting.
        (WebInspector.ConsoleMessage.prototype._formatIndividualValue): handling individual value formatting.
        (WebInspector.ConsoleCommandResult):
        * inspector/front-end/InjectedScript.js: simplified regex formatting.
        * inspector/front-end/inspector.js:
        (WebInspector.linkifyStringAsFragment): converted new RegExp to literal for performance benefits.
        * inspector/front-end/utilities.js:
        (Element.prototype.hasStyleClass): update inaccurate comment.
        (String.prototype.trimURL): converted new RegExp to literal for performance benefits.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@51506 268f45cc-cd09-0410-ab3c-d52691b4dbfc