Utils: Register metatypes for QProcess enums

Apparently they aren't automatically registered on Qt 5.5

Change-Id: I0932cc7c5f56019300380ebb905d67d99eb8e9d0
Reviewed-by: hjk <hjk@theqtcompany.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

src/libs/utils/qtcprocess.cpp

@@ -667,6 +667,17 @@ bool QtcProcess::prepareCommand(const QString &command, const QString &arguments
     return true;
 }
 
+QtcProcess::QtcProcess(QObject *parent)
+    : QProcess(parent),
+      m_haveEnv(false),
+      m_useCtrlCStub(false)
+{
+    static int qProcessExitStatusMeta = qRegisterMetaType<QProcess::ExitStatus>();
+    static int qProcessProcessErrorMeta = qRegisterMetaType<QProcess::ProcessError>();
+    Q_UNUSED(qProcessExitStatusMeta);
+    Q_UNUSED(qProcessProcessErrorMeta);
+}
+
 void QtcProcess::setUseCtrlCStub(bool enabled)
 {
     // Do not use the stub in debug mode. Activating the stub will shut down

src/libs/utils/qtcprocess.h

@@ -37,11 +37,7 @@ class QTCREATOR_UTILS_EXPORT QtcProcess : public QProcess
     Q_OBJECT
 
 public:
-    QtcProcess(QObject *parent = 0)
-      : QProcess(parent),
-        m_haveEnv(false)
-      , m_useCtrlCStub(false)
-        {}
+    QtcProcess(QObject *parent = 0);
     void setEnvironment(const Environment &env)
         { m_environment = env; m_haveEnv = true; }
     void setCommand(const QString &command, const QString &arguments)
@@ -152,3 +148,6 @@ private:
 };
 
 } // namespace Utils
+
+Q_DECLARE_METATYPE(QProcess::ExitStatus);
+Q_DECLARE_METATYPE(QProcess::ProcessError);