…ions

…tions

Fixes rust-lang#73050

…, r=dtolnay

Migrate to numeric associated consts

The deprecation PR is rust-lang#72885

cc rust-lang#68490
cc rust-lang/rfcs#2700

expand: More precise locations for expansion-time lints

First commit: a macro expansion doesn't have a `NodeId` associated with it, but it has a parent `DefId` which we can use for linting.
The observable effect is that lints associated with macro expansions can now be `allow`ed at finer-grained level than whole crate.

Second commit: each macro definition has a `NodeId` which we can use for linting, unless that macro definition was decoded from other crate.

Allow inference regions when relating consts

As first noticed by @eddyb, `super_relate_consts` doesn't need to check for inference vars since `eval` does it already (and handles lifetimes correctly by erasing them).

Fixes rust-lang#73050

r? @oli-obk

…an-DPC

Clean up E0666 explanation

r? @Dylan-DPC

Fix Zulip pings

r? @Dylan-DPC