Web Inspector: Open resource dialog has too many false positive matches.

Web Inspector: Open resource dialog has too many false positive matches.
https://bugs.webkit.org/show_bug.cgi?id=97332

Reviewed by Alexander Pavlov.

Source/WebCore:

Improved open resource dialog filtering to make the amount of false
positive search results less.

* inspector/front-end/FilteredItemSelectionDialog.js:
(WebInspector.FilteredItemSelectionDialog.prototype._innerCreateSearchRegExp):
(WebInspector.FilteredItemSelectionDialog.prototype._highlightItem.get var):
(WebInspector.FilteredItemSelectionDialog.prototype._highlightItem):

LayoutTests:

* inspector/filtered-item-selection-dialog-filtering-expected.txt:
* inspector/filtered-item-selection-dialog-filtering.html:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@129355 268f45cc-cd09-0410-ab3c-d52691b4dbfc