Reviewed by Geoffrey Garen.

        First step in https://bugs.webkit.org/show_bug.cgi?id=22394
        Be more eager in destroying script decoded data

        Pass data to be used in script execution around as JSC::SourceCode instead
        of a source, url, and starting line.

        * bindings/js/ScriptController.cpp:
        (WebCore::ScriptController::evaluate):
        * bindings/js/ScriptController.h:
        * bindings/js/StringSourceProvider.h:
        (WebCore::makeSource):
        * bindings/js/WorkerScriptController.cpp:
        (WebCore::WorkerScriptController::evaluate):
        * bindings/js/WorkerScriptController.h:
        * dom/ScriptElement.cpp:
        (WebCore::ScriptElement::insertedIntoDocument):
        (WebCore::ScriptElement::childrenChanged):
        (WebCore::ScriptElementData::evaluateScript):
        (WebCore::ScriptElementData::notifyFinished):
        * dom/ScriptElement.h:
        * dom/WorkerThread.cpp:
        (WebCore::WorkerThread::workerThread):
        * dom/XMLTokenizer.cpp:
        (WebCore::XMLTokenizer::notifyFinished):
        * dom/XMLTokenizerLibxml2.cpp:
        (WebCore::XMLTokenizer::endElementNs):
        * dom/XMLTokenizerQt.cpp:
        (WebCore::XMLTokenizer::parseEndElement):
        * html/HTMLTokenizer.cpp:
        (WebCore::HTMLTokenizer::scriptHandler):
        (WebCore::HTMLTokenizer::scriptExecution):
        (WebCore::HTMLTokenizer::notifyFinished):
        * html/HTMLTokenizer.h:
        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::executeScript):
        * loader/FrameLoader.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@38654 268f45cc-cd09-0410-ab3c-d52691b4dbfc