Provide `ScriptMenu` reference to `ItemScriptLine` #2669

Job	Run time
clickable (Debug, amd64, glew)	11m 59s
clickable (Debug, amd64, sdl)	11m 2s
clickable (Debug, armhf, glew)	11m 28s
clickable (Debug, armhf, sdl)	10m 15s
clickable (Release, amd64, glew)	11m 22s
clickable (Release, amd64, sdl)	11m 14s
clickable (Release, arm64, glew)	11m 34s
clickable (Release, arm64, sdl)	11m 4s
clickable (Release, armhf, glew)	10m 41s
clickable (Release, armhf, sdl)	10m 32s
	1h 51m 11s

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