bug#62626: 29.0.60; describe-key errors on Edit → Paste from Kill Ring → [any item]

[Stefan Monnier]

> An alternative solution for the original problem would be to teach
> event-basic-type and event-modifiers about "events" that happen to be
> strings.

Since `read-key-sequence` returns those, we should probably teach
`event-*` functions to deal with them.

But since they don't agree with `eventp`, maybe we should also consider
deprecating such "weird keys".

FWIW, that very same "Paste from Kill Menu" is constructed differently in
`context-menu-region` where it doesn't suffer from this problem (it
uses integers instead of strings, as keys).


        Stefan