unused_parens incorrectly lints on `if let Ok(x) = (try { ...`

[comex]

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This produces a lint:

if let Ok(x) = (try { }: Result<(), ()>) {}

But removing the parentheses produces an error.

This bug was already mentioned in #42528, but that issue is lost in feature-request purgatory since it asks for the version without parentheses to be allowed. I'm opening this issue to track the incorrect lint specifically.

(Edit: Fixed the example.)

This issue has been assigned to @lcnr via this comment.

[lcnr]

@rustbot claim

Will wait for #70081 to get merged before this is fixed though.