[CSDiagnostics] Break to the fallbacks when no specific diagnostics is found

Author: LucianoPAlmeida

lib/Sema/CSDiagnostics.cpp

@@ -659,10 +659,6 @@ bool GenericArgumentsMismatchFailure::diagnoseAsError() {
       break;
     }
 
-    case ConstraintLocator::GenericArgument: {
-      break;
-    }
-
     case ConstraintLocator::OptionalPayload: {
       // If we have an inout expression, this comes from an
       // InoutToPointer argument mismatch failure.
@@ -689,7 +685,7 @@ bool GenericArgumentsMismatchFailure::diagnoseAsError() {
     }
 
     default:
-      return false;
+      break;
     }
   }