Fix qmake build of unittests

This basically continues / amends work done
with e1c88116b3.

Change-Id: Ia8b3a4694e7fea4c15e344839f87c11fbe8fbbf4
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/qbsprojectmanager/qbscleanstep.cpp

@@ -49,7 +49,7 @@ namespace Internal {
 // QbsCleanStep:
 // --------------------------------------------------------------------
 
-QbsCleanStep::QbsCleanStep(BuildStepList *bsl, Core::Id id)
+QbsCleanStep::QbsCleanStep(BuildStepList *bsl, Utils::Id id)
     : BuildStep(bsl, id)
 {
     setDisplayName(tr("Qbs Clean"));