MueLu: fix #2664 for std::complex using a cast in parameter list

This commit provides a simple fix to the error in the BlockedRepartition
unit test when std::complex is on. This should remove the last error on the
dashboard related to PR #2561

packages/muelu/test/unit_tests/BlockedRepartition.cpp

@@ -868,7 +868,7 @@ namespace MueLuTests {
   // Smoothers
   RCP<BlockedGaussSeidelSmoother> smootherPrototype     = rcp( new BlockedGaussSeidelSmoother() );
   smootherPrototype->SetParameter("Sweeps", Teuchos::ParameterEntry(2));
-  smootherPrototype->SetParameter("Damping factor", Teuchos::ParameterEntry(1.0));
+  smootherPrototype->SetParameter("Damping factor", Teuchos::ParameterEntry((SC) 1.0));
   smootherPrototype->AddFactoryManager(M11,0);
   smootherPrototype->AddFactoryManager(M22,1);
   RCP<SmootherFactory>   smootherFact          = rcp( new SmootherFactory(smootherPrototype) );