Auto merge of #66259 - JohnTitor:rollup-x9nk1e2, r=JohnTitor

Rollup of 7 pull requests

Successful merges:

 - #65719 (Refactor sync::Once)
 - #65831 (Don't cast directly from &[T; N] to *const T)
 - #66048 (Correct error in documentation for Ipv4Addr method)
 - #66058 (Correct deprecated `is_global` IPv6 documentation)
 - #66216 ([mir-opt] Handle return place in ConstProp and improve SimplifyLocals pass)
 - #66217 (invalid_value lint: use diagnostic items)
 - #66235 (rustc_metadata: don't let LLVM confuse rmeta blobs for COFF object files.)

Failed merges:

r? @ghost