- got rid of some framework initialization (working on bug 2959353)

        * kjs/identifier.h: Turn Identifier:null into Identifier:null().
        * kjs/identifier.cpp: Removed Identifier:null and added Identifier:null().

        * kjs/internal.cpp: Made NaN_Bytes and Inf_Bytes const.

        * kjs/completion.h: Use Identifier:null() instead of Identifier:null.
        * kjs/function.h: Ditto.
        * kjs/function_object.cpp: (FunctionObjectImp::construct): Ditto.
        * kjs/nodes.cpp: (FuncExprNode::evaluate): Use Identifier:null() instead of Identifier:null.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@3745 268f45cc-cd09-0410-ab3c-d52691b4dbfc