Reviewed by Ken.

    Reviewed by Ken.

        - added support for copying RegExp objects so 7 more Mozilla regexp tests pass

        * kjs/regexp_object.cpp: (RegExpObjectImp::construct): Check for case where
        we are supposed to just copy the regular expression object, and do so.
        Also tighten up arguments check to handle case where an actual "undefined"
        is passed rather than just omitting an argument.

        * tests/mozilla/expected.html: Update results.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@7181 268f45cc-cd09-0410-ab3c-d52691b4dbfc