Utils: Introduce a QtcProcess::startDetached

A convenience wrapper around QProcess::startDetached().

Change-Id: If4228e8405ad4d5e172930593a6f670874211767
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/libs/utils/qtcprocess.cpp

@@ -645,6 +645,14 @@ void QtcProcess::interrupt()
 #endif
 }
 
+bool QtcProcess::startDetached(const CommandLine &cmd, const FilePath &workingDirectory, qint64 *pid)
+{
+    return QProcess::startDetached(cmd.executable().toUserOutput(),
+                                   cmd.splitArguments(),
+                                   workingDirectory.toUserOutput(),
+                                   pid);
+}
+
 void QtcProcess::setLowPriority()
 {
     d->m_process->setLowPriority();

src/libs/utils/qtcprocess.h

@@ -109,6 +109,8 @@ public:
     void terminate();
     void interrupt();
 
+    static bool startDetached(const CommandLine &cmd, const FilePath &workingDirectory,
+                              qint64 *pid = nullptr);
     // Starts the command and waits for finish. User input processing depends
     // on whether setProcessUserEventWhileRunning was called.
     void runBlocking();