The one in ScriptInterface_Impl is actually used. Introduced in e9e05f4efc and from what I can tell never actually used. Differential Revision: https://code.wildfiregames.com/D3960 This was SVN commit r25433.
e9e05f4efc
5473393e30
bb49fbe793
0198942a79
34b1920e7b
8b08f4ae7a
0dbf417171
3af1fc64d2
5fbdbaa3bc
6fbf036ae4