Argument type is not inferred in async closure

[plazmoid]

rust-analyzer version: rust-analyzer version: 0.3.2308-standalone

rustc version: rustc 1.85.0 (4d91de4e4 2025-02-17)

editor or extension: VSCode 1.85.2 + r-a extension

relevant settings: new clean project without deps

code snippet to reproduce:

[ShoyuVanilla]

I tracked down this a bit and it seems that this need to be fixed in chalk(async closures or functions that returns Future should have builtin AsyncFn*) or we should do some hacky workaround, but I'm afraid that either way it would hinder currently ongoing our internal migration to next-gen solver 🤔

[ChayimFriedman2]

Ouch, so we do need support from Chalk. I thought we managed to avoid this.

@ShoyuVanilla I think we still ought to do that, this shouldn't be a lot of changes and without them the experience using async closures is badly hurt.

[ShoyuVanilla]

Okay, I'll issue a PR to the chalk some hours later (or not if you're gonna work on this 😅 )