QmlJS: Remove Interpreter namespace.

The distinction between QmlJS and QmlJS::Interpreter has always been
weak and the extra namespace just added an unnecessary complication.

Change-Id: I4db8ef4bd91b5f6bf610a9d23fdbf55bd60250fc
Reviewed-on: http://codereview.qt.nokia.com/2743
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@nokia.com>

src/plugins/qmljseditor/qmltaskmanager.cpp

@@ -73,7 +73,7 @@ void QmlTaskManager::collectMessages(QFutureInterface<FileErrorMessages> &future
     Snapshot snapshot, QStringList files, QStringList /*importPaths*/)
 {
     // ### link and check error messages are disabled for now: too many false-positives!
-    //Interpreter::Context ctx(snapshot);
+    //Context ctx(snapshot);
     //QHash<QString, QList<DiagnosticMessage> > linkMessages;
     //Link link(&ctx, snapshot, importPaths);
     //link(&linkMessages);