Combine two types of commands into one generation function.

tests/DesignatedInitializers/DesignatedInitializers.cpp

@@ -51,7 +51,7 @@ MyVulkanTest::MyVulkanTest()
 int main( int /*argc*/, char ** /*argv*/ )
 {
   // to prevent a warning on unreferenced function vk::getDispatchLoaderStatic, use just one arbitrary vk-function
-  vk::enumerateInstanceVersion();
+  (void)vk::enumerateInstanceVersion();
 
   char const * appName       = "DesignatedInitializers";
   uint32_t     appVersion    = 1;