Reviewed by Maciej.
        
        Use $(ConfigSuffix) set via vsprops files to add _debug
        to end of debug filenames.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.vcproj/debug.vsprops: Added.
        * JavaScriptCore.vcproj/dftables/dftables.vcproj:
        * JavaScriptCore.vcproj/release.vsprops: Added.
        * JavaScriptCore.vcproj/testkjs/testkjs.vcproj:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@16632 268f45cc-cd09-0410-ab3c-d52691b4dbfc