Auto merge of #124330 - fmease:rollup-a98y7jf, r=fmease

Rollup of 6 pull requests

Successful merges:

 - #123316 (Test `#[unix_sigpipe = "inherit"]` with both `SIG_DFL` and `SIG_IGN`)
 - #123794 (More DefineOpaqueTypes::Yes)
 - #123881 (Bump Fuchsia versions)
 - #124281 (fix weak memory bug in TLS on Windows)
 - #124282 (windows fill_utf16_buf: explain the expected return value)
 - #124308 (Add diagnostic item for `std::iter::Enumerate`)

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