[Change]: [1.94.0] Impls and impl items inherit dead_code lint level of the corresponding traits and trait items

[PLeVasseur]

Change description

Impls and impl items inherit dead_code lint level of the corresponding traits and trait items

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N/A

Category

New content

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Change description (extended)

Link to PR on the compiler:
Impls and impl items inherit dead_code lint level of the corresponding traits and trait items