Reviewed by Darin Adler.
        
        <rdar://problem/5576619> 
        REGRESSION: Caret disappears after deleting the last character in inline hole (15714)

        * editing/TypingCommand.cpp:
        (WebCore::TypingCommand::deleteSelection): Like the other TypingCommands, including
        both of the other deletion commands, call typingAddedToOpenCommand(), which takes 
        the command's endingSelection and sets it as selection.

LayoutTests:

        Reviewed by Darin Adler.
        
        <rdar://problem/5576619> REGRESSION: Caret disappears after deleting the last character in inline hole (15714)

        * platform/mac/editing/input/5576619-expected.checksum: Added.
        * platform/mac/editing/input/5576619-expected.png: Added.
        * platform/mac/editing/input/5576619-expected.txt: Added.
        * platform/mac/editing/input/5576619.html: Added.
        * platform/mac/editing/input/text-input-controller-expected.txt:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@27488 268f45cc-cd09-0410-ab3c-d52691b4dbfc