rust/library/std/src/sys/stdio/windows, branch beta

rust/library/std/src/sys/stdio/windows, branch beta https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=beta 2025-03-09T22:42:13+00:00 std: move stdio to `sys` 2025-03-09T22:42:13+00:00 joboet jonasboettiger@icloud.com 2025-02-09T17:42:07+00:00 urn:sha1:c52e0596c5ef1d68bf0f283342fdb05db63248f9 As per #117276, this moves the platform definitions of `Stdout` and friends into `sys`. This PR also unifies the UNIX and Hermit implementations and moves the `__rust_print_err` function needed by libunwind on SGX into the dedicated module for such helper functions.