Auto merge of #142003 - matthiaskrgr:rollup-ad8l9ns, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang/rust#136687 (Improve the documentation of `Display` and `FromStr`, and their interactions)
 - rust-lang/rust#137306 (Remove `i128` and `u128` from `improper_ctypes_definitions`)
 - rust-lang/rust#138699 (build dist for x86_64-pc-solaris and sparcv9-sun-solaris)
 - rust-lang/rust#141250 (add s390x z17 target features)
 - rust-lang/rust#141467 (make `OsString::new` and `PathBuf::new` unstably const)
 - rust-lang/rust#141871 (index: add method for checking range on DenseBitSet)
 - rust-lang/rust#141888 (Use non-2015 edition paths in tests that do not test for their resolution)
 - rust-lang/rust#142000 (bootstrap: don't symlink source dir into stage0 sysroot)

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