Reviewed by Maciej.

    Reviewed by Maciej.

        - fixed <rdar://problem/3920764> Unimplemented String methods toLocaleLowerCase and toLocaleUpperCase

        * kjs/string_object.h: Added toLocaleLowerCase and toLocaleUpperCase.
        * kjs/string_object.cpp: (StringProtoFuncImp::call): Made locale versions be synonmyms for the
        non-locale-specific versions.
        * kjs/string_object.lut.h: Regenerated.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8233 268f45cc-cd09-0410-ab3c-d52691b4dbfc