Forward-declare some classes in QmlJsTools.

Change-Id: I7196c1b2be093d4070c68546f13ee2ef36c2876c
Reviewed-by: Aurindam Jana <aurindam.jana@digia.com>

src/plugins/qmljstools/qmljsbundleprovider.h

@@ -31,9 +31,7 @@
 #define QMLJSBUNDLEPROVIDER_H
 
 #include <QObject>
-
-#include <qmljs/qmljsbundle.h>
-#include <qmljs/qmljsdocument.h>
+#include <QHash>
 
 #include "qmljstools_global.h"
 
@@ -43,6 +41,11 @@ class Project;
 class Target;
 }
 
+namespace QmlJS {
+class QmlLanguageBundles;
+class QmlBundle;
+} // namespace QmlJS
+
 namespace QmlJSTools {
 
 class QMLJSTOOLS_EXPORT IBundleProvider : public QObject