Reviewed by Eric Seidel.

        Second step in refactoring JSGlobalObject: moved virtual functions from
        Interpreter to JSGlobalObject.
        
        Layout and JS tests pass. SunSpider reports a .7% speedup -- don't 
        believe his lies.

JavaScriptGlue:

        Reviewed by Eric Seidel.

        Updated to match the JavaScriptCore change to move virtual methods from
        Interpreter to JSGlobalObject.
        
        * JSRun.cpp:
        * JSRun.h:
        * JSValueWrapper.cpp:
        (getThreadGlobalExecState):
        * JavaScriptGlue.cpp:
        (JSRunCopyGlobalObject):
        (JSRunEvaluate):

WebCore:

        Reviewed by Eric Seidel.

        Updated to match the JavaScriptCore change to move virtual methods from
        Interpreter to JSGlobalObject.
        
        Moved virtual ScriptInterpreter functions to Window.

WebKit/mac:

        Reviewed by Eric Seidel.

        Updated to match the JavaScriptCore change to move virtual methods from
        Interpreter to JSGlobalObject.

        * WebView/WebFrame.mm:
        (-[WebFrame globalContext]): Use the toRef function instead of manually
        casting.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@28328 268f45cc-cd09-0410-ab3c-d52691b4dbfc