Rollup of 8 pull requests

[matthiaskrgr]

Successful merges:

• static mut: allow mutable reference to arbitrary types, not just slices and arrays #117614 (static mut: allow mutable reference to arbitrary types, not just slices and arrays)
• wasm: Store rlib metadata in wasm object files #120588 (wasm: Store rlib metadata in wasm object files)
• Remove support for associated_type_bound nested in dyn types #120719 (Remove support for associated_type_bound nested in dyn types)
• Clarify that atomic and regular integers can differ in alignment #120823 (Clarify that atomic and regular integers can differ in alignment)
• Loosen an assertion to account for stashed errors. #120859 (Loosen an assertion to account for stashed errors.)
• Turn the "no saved object file in work product" ICE into a translatable fatal error #120865 (Turn the "no saved object file in work product" ICE into a translatable fatal error)
• Remove unnecessary #![feature(min_specialization)] #120866 (Remove unnecessary #![feature(min_specialization)])
• Allow restricted trait impls under #[allow_internal_unstable(min_specialization)] #120870 (Allow restricted trait impls under #[allow_internal_unstable(min_specialization)])

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