Fix compiler warnings.

src/plugins/qmldesigner/designercore/instances/nodeinstanceclientproxy.cpp

@@ -96,7 +96,6 @@ NodeInstanceClientProxy::NodeInstanceClientProxy(QObject *parent)
 
 void NodeInstanceClientProxy::writeCommand(const QVariant &command)
 {
-    static unsigned int commandCounter = 0;
     QByteArray block;
     QDataStream out(&block, QIODevice::WriteOnly);
     out << quint32(0);

src/plugins/qmldesigner/designercore/instances/nodeinstanceserverproxy.cpp

@@ -277,7 +277,6 @@ void NodeInstanceServerProxy::processFinished(int /*exitCode*/, QProcess::ExitSt
 
 void NodeInstanceServerProxy::readFirstDataStream()
 {
-    static unsigned int lastCommandCounter = 0;
     QList<QVariant> commandList;
 
     while (!m_firstSocket->atEnd()) {
@@ -315,7 +314,6 @@ void NodeInstanceServerProxy::readFirstDataStream()
 
 void NodeInstanceServerProxy::readSecondDataStream()
 {
-    static unsigned int lastCommandCounter = 0;
     QList<QVariant> commandList;
 
     while (!m_secondSocket->atEnd()) {

tests/manual/gdbdebugger/simple/simple_gdbtest_app.cpp

@@ -2559,6 +2559,7 @@ void testMPI()
 int main(int argc, char *argv[])
 {
     int *x = new int(32);
+    Q_UNUSED(x);
     testQXmlAttributes();
     testQRegExp();
     testInlineBreakpoints();

tests/valgrind/memcheck/testapps/syscall/main.cpp

@@ -1,3 +1,5 @@
+#pragma GCC diagnostic ignored "-Wuninitialized"
+
 int main()
 {
     int i;

tests/valgrind/memcheck/testapps/uninit1/main.cpp

@@ -1,3 +1,5 @@
+#pragma GCC diagnostic ignored "-Wuninitialized"
+
 int main()
 {
     bool b;

tests/valgrind/memcheck/testapps/uninit2/main.cpp

@@ -1,3 +1,5 @@
+#pragma GCC diagnostic ignored "-Wuninitialized"
+
 int main()
 {
     int *i;

tests/valgrind/memcheck/testapps/uninit3/main.cpp

@@ -1,3 +1,5 @@
+#pragma GCC diagnostic ignored "-Wuninitialized"
+
 int main()
 {
     int *i;