Do not look for disallowed methods inside desugared code

[samueltardieu]

changelog: [disallowed_methods]: do not check compiler-generated code

Fixes rust-lang/rust-clippy#16185

[rustbot]

r? @blyxyas

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[samueltardieu]

Repushing with a better commit message

[samueltardieu]

@blyxyas is currently out of reviewer rotation. r? clippy

[BatmanAoD]

@samueltardieu Is Clippy's release schedule like Rust's, where a merge to the trunk is first released to beta and only stabilized 6 weeks later, or should I expect that this fix will be available in the first release after it gets merged?

[samueltardieu]

@samueltardieu Is Clippy's release schedule like Rust's, where a merge to the trunk is first released to beta and only stabilized 6 weeks later, or should I expect that this fix will be available in the first release after it gets merged?

The fix will be present in 1.94-beta and 1.94, and also in the nightly releases starting around December 26.