iOS: Use run arguments more directly

This also treats the arguments list as an arguments list for running,
not as a single argument.

Change-Id: Ia95e02c6324947081147b8bf8084cdd3a7d1eaf0
Reviewed-by: Vikas Pachdha <vikas.pachdha@qt.io>

src/plugins/ios/iosrunner.h

@@ -53,7 +53,6 @@ public:
     void setQmlDebugging(QmlDebug::QmlDebugServicesPreset qmlDebugServices);
 
     QString bundlePath();
-    QStringList extraArgs();
     QString deviceId();
     IosToolHandler::RunKind runType();
     bool cppDebug() const;
@@ -84,7 +83,7 @@ private:
 
     IosToolHandler *m_toolHandler = nullptr;
     QString m_bundleDir;
-    QStringList m_arguments;
+    QString m_arguments;
     ProjectExplorer::IDevice::ConstPtr m_device;
     IosDeviceType m_deviceType;
     bool m_cppDebug = false;