On the buildbot, this is a fatal error:

        ld: symbols names listed in -exported_symbols_list: WebKitBuild/Release/DerivedSources/WebCore/WebCore.exp not in linked objects
        __ZN3WTF10RefCountedIN7WebCore8FormDataEE5derefEv
        /usr/bin/libtool: internal link edit command failed

        Newer dev tools only produce a warning:

        ld warning: cannot export hidden symbol __ZN3WTF10RefCountedIN7WebCore8FormDataEE5derefEv from WebKitBuild/WebCore.build/Release/WebCore.build/Objects-normal/i386/DocumentLoader.o

        * WebCore.base.exp: Remove hidden symbol from export list.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@32716 268f45cc-cd09-0410-ab3c-d52691b4dbfc