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Should #[naked] functions default to #[inline(never)] ? #60919

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@fintelia

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@fintelia

Currently, the compiler is allowed to inline naked functions if it wants to. For a normal function, inlining is fine because the compiler can remove the function prologue/epilogue and the remaining will behave as expected. However for naked functions, the developer provides the prologue/epilogue and those aren't removed by the compiler. This almost surely will result in incorrect behavior. Accordingly I think it would make sense for the compiler to not inline naked functions unless the developer explicitly opted-in.

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    A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSC-bugCategory: This is a bug.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.T-langRelevant to the language team, which will review and decide on the PR/issue.

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