svg/custom/text-hit-test.svg was failing

        * rendering/RenderContainer.cpp:
        (WebCore::RenderContainer::positionForCoordinates): Don't skip child
        renderers that have a height of 0 when looking for the closest child
        renderer, they may contain content that overflows.
        * rendering/RenderText.cpp:
        (WebCore::RenderText::positionForCoordinates): Fixed typos.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@15087 268f45cc-cd09-0410-ab3c-d52691b4dbfc