gui/test: Put createAction() to anonymous namespace

src/gui/test/HotkeyTests.cpp

@@ -96,8 +96,10 @@ struct TestHotKey
     std::vector<TestAction> actions;
 };
 
-Action createAction(const TestAction& test_action)
-{
+namespace {
+
+    Action createAction(const TestAction& test_action)
+    {
         Action action;
         action.setType(test_action.type);
 
@@ -128,7 +130,8 @@ Action createAction(const TestAction& test_action)
                 break;
         }
         return action;
-}
+    }
+} // namespace
 
 void doHotkeyLoadSaveTest(const TestHotKey& test_hotkey, QSettings::Format format)
 {