So, it seems we would increase consensus in EWG if we
added emojis to the valid identifier characters.

That also gets us zero-width joiners (ZWJ):
https://www.unicode.org/reports/tr51/#gender-neutral

but maybe we can limit the fall-out by allowing ZWJ
only inside of sequences of emojis, although I hate
to burden compilers with even more special rules around
the source code text (beyond NFC).

Jens