Web Inspector: evaluate on hover does not work for large files.

Web Inspector: evaluate on hover does not work for large files.
https://bugs.webkit.org/show_bug.cgi?id=79015

Patch by Pavel Feldman <pfeldman@chomium.org> on 2012-02-21
Reviewed by Yury Semikhatsky.

* inspector/front-end/JavaScriptSourceFrame.js:
(WebInspector.JavaScriptSourceFrame.prototype._getPopoverAnchor):
(WebInspector.JavaScriptSourceFrame.prototype._highlightExpression):
* inspector/front-end/Popover.js:
(WebInspector.PopoverHelper.prototype._handleMouseAction):
* inspector/front-end/SourceJavaScriptTokenizer.js:
(WebInspector.SourceJavaScriptTokenizer):
(WebInspector.SourceJavaScriptTokenizer.prototype.nextToken):
* inspector/front-end/SourceJavaScriptTokenizer.re2js:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@108331 268f45cc-cd09-0410-ab3c-d52691b4dbfc