Reviewed by Eric Seidel.

        - https://bugs.webkit.org/show_bug.cgi?id=21214
          work on getting rid of ExecState

        Eliminate some unneeded uses of dynamicGlobalObject.

        * API/JSClassRef.cpp:
        (OpaqueJSClass::contextData): Changed to use a map in the global data instead
        of on the global object. Also fixed to use only a single hash table lookup.

        * API/JSObjectRef.cpp:
        (JSObjectMakeConstructor): Use lexicalGlobalObject rather than dynamicGlobalObject
        to get the object prototype.

        * kjs/ArrayPrototype.cpp:
        (JSC::arrayProtoFuncToString): Use arrayVisitedElements set in global data rather
        than in the global object.
        (JSC::arrayProtoFuncToLocaleString): Ditto.
        (JSC::arrayProtoFuncJoin): Ditto.

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Don't initialize opaqueJSClassData, since
        it's no longer a pointer.
        (JSC::JSGlobalData::~JSGlobalData): We still need to delete all the values, but
        we don't need to delete the map since it's no longer a pointer.

        * kjs/JSGlobalData.h: Made opaqueJSClassData a map instead of a pointer to a map.
        Also added arrayVisitedElements.

        * kjs/JSGlobalObject.h: Removed arrayVisitedElements.

        * kjs/Shell.cpp:
        (functionRun): Use lexicalGlobalObject instead of dynamicGlobalObject.
        (functionLoad): Ditto.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@37175 268f45cc-cd09-0410-ab3c-d52691b4dbfc