Reviewed by Darin.

        - test for http://bugzilla.opendarwin.org/show_bug.cgi?id=7433
          REGRESSION (r12789): Second RTL text run on a line cannot be selected

        * fast/text/in-rendered-text-rtl-expected.checksum: Added.
        * fast/text/in-rendered-text-rtl-expected.png: Added.
        * fast/text/in-rendered-text-rtl-expected.txt: Added.
        * fast/text/in-rendered-text-rtl.html: Added.

WebCore:

        Test: fast/text/in-rendered-text-rtl.html

        Reviewed by Darin.

        - fix http://bugzilla.opendarwin.org/show_bug.cgi?id=7433
          REGRESSION (r12789): Second RTL text run on a line cannot be selected

        * dom/dom_position.cpp:
        (WebCore::Position::inRenderedText): If the RenderText contains
        reversed text, the text boxes are not necessarily ordered by start
        position, so iterate through all of them.
        (WebCore::Position::isRenderedCharacter): Ditto.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@13045 268f45cc-cd09-0410-ab3c-d52691b4dbfc