Coercion to strings could reject or strip contexts as "coercion kinds"

#364
Opened by raitobezarius at 2024-01-03T14·05+00

Coercion kinds can optionally import paths or perform a strong variant of the coercion.

In addition, we can add two kinds:

The rejection seems to be useful in at least one instance as remarked by https://cl.tvl.fyi/c/depot/+/10444.