[allow_attributes, allow_attributes_without_reason]: Ignore attributes from procedural macros

[Centri3]

I use lint_reasons and clap, which is a bit overzealous when it comes to preventing warnings in its macros; it uses a ton of allow attributes on everything to, as ironic as it is, silence warnings. These two now ignore anything from procedural macros.

PS, I think allow_attributes.rs should be merged with attrs.rs in the future.

fixes #10377

changelog: [allow_attributes, allow_attributes_without_reason]: Ignore attributes from procedural macros

[rustbot]

r? @Manishearth

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[Manishearth]

@bors r+

thanks!

[bors]

📌 Commit b469e8c has been approved by Manishearth

It is now in the queue for this repository.

[bors]

⌛ Testing commit b469e8c with merge 1841661...

[bors]

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: Manishearth
Pushing 1841661 to master...