Boyer-Moore string searching in LIKE, ILIKE, and/or POSITION?

In the PostgreSQL Todo wiki, Boyer-Moore string searching for LIKE is
mentioned as an outstanding item.

For the common and simple cases of find this string anywhere in another
string:

str LIKE '%foo%'

str ILIKE  '%foo%'

position('foo' in str) > 0

Is Boyer-Moore string searching now used by any of these three?

I checked the PG documentation and found no info about this other than what
was in the Todo wiki, https://wiki.postgresql.org/wiki/Todo, under
Functions. Tom Lane gave a thumbs down to the idea back in 2008, but that
was a long time ago:
https://www.postgresql.org/message-id/27645.1220635769@sss.pgh.pa.us .

Sincerely,

Martin L Buchanan
senior software engineer
Laramie, WY, USA