replace ArrayRange by tcb::span (reproduction of std::span)

radiant/clippertool.cpp

@@ -181,7 +181,7 @@ void Clipper_constructPreferences( PreferencesPage& page ){
 		const char* dowhat[] = { "Clip    ", "Split", };
 		page.appendRadio(
 		    "On DoubleClick do: ",
-		    STRING_ARRAY_RANGE( dowhat ),
+		    StringArrayRange( dowhat ),
 		    IntImportCaller( g_clipper_doubleclicked_split ),
 		    IntExportCaller( g_clipper_doubleclicked_split )
 		);