Auto merge of #139940 - matthiaskrgr:rollup-rd4d3fn, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #135340 (Add `explicit_extern_abis` Feature and Enforce Explicit ABIs)
 - #139440 (rustc_target: RISC-V: feature addition batch 2)
 - #139667 (cfi: Remove #[no_sanitize(cfi)] for extern weak functions)
 - #139828 (Don't require rigid alias's trait to hold)
 - #139854 (Improve parse errors for stray lifetimes in type position)
 - #139889 (Clean UI tests 3 of n)
 - #139894 (Fix `opt-dist` CLI flag and make it work without LLD)
 - #139900 (stepping into impls for normalization is unproductive)
 - #139915 (replace some #[rustc_intrinsic] usage with use of the libcore declarations)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors