More Utils::toSet/toList

... and unrelated cosmetic changes.

Change-Id: I591b17fd5289831e701b683f8fb47816efd1fa67
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/ios/iosprobe.cpp

@@ -25,6 +25,7 @@
 
 #include "iosprobe.h"
 
+#include <utils/algorithm.h>
 #include <utils/synchronousprocess.h>
 
 #include <QDir>
@@ -118,7 +119,7 @@ void XcodeProbe::setupDefaultToolchains(const QString &devPath)
         const QFileInfo sdkPathInfo(sdk.path.toString());
         if (sdkPathInfo.exists() && sdkPathInfo.isDir()) {
             clangProfile.sdks.push_back(sdk);
-            allArchitectures += sdk.architectures.toSet();
+            allArchitectures += Utils::toSet(sdk.architectures);
         }
     }