Fix some warnings

src/wayland/autotests/client/test_datadevice.cpp

@@ -581,8 +581,8 @@ void TestDataDevice::testReplaceSource()
 
     // try to crash by destroying the data source, then requesting data
     dataSource4.reset();
-    int pipeFds[2];
-    Q_ASSERT(pipe(pipeFds) == 0);
+    int pipeFds[2] = {0, 0};
+    QVERIFY(pipe(pipeFds) == 0);
 
     dataOffer->receive(QStringLiteral("text/plain"), pipeFds[1]);
     close(pipeFds[1]);

src/wayland/inputmethod_v1_interface.cpp

@@ -189,6 +189,9 @@ public:
         case ZWP_TEXT_INPUT_V1_TEXT_DIRECTION_AUTO:
             qtDirection = Qt::LayoutDirectionAuto;
             break;
+        default:
+            Q_UNREACHABLE();
+            break;
         }
         Q_EMIT q->textDirection(serial, qtDirection);
     }