Rollup merge of #139510 - nnethercote:name-to-ident, r=fee1-dead

Rename some `name` variables as `ident`.

It bugs me when variables of type `Ident` are called `name`. It leads to silly things like `name.name`. `Ident` variables should be called `ident`, and `name` should be used for variables of type `Symbol`.

This commit improves things by by doing `s/name/ident/` on a bunch of `Ident` variables. Not all of them, but a decent chunk.

r? `@fee1-dead`

Author: matthiaskrgr