Rollup merge of #140552 - folkertdev:naked-function-rustc_std_internal_symbol, r=bjorn3

allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`

The need for this came up in rust-lang/compiler-builtins#897, but in general this seems useful and valid to allow.

Based on a quick scan, I don't think changes to the generated assembly are needed.

cc ``@bjorn3``

Author: GuillaumeGomez