[release-branch.go1.27] go1.27rc2

发生了什么

Change-Id: Iee4d231b5b040576ab9c1175ba726e03090fff7c Reviewed-on: https://go-review.googlesource.com/c/go/+/797800 TryBot-Bypass: Gopher Robot gobot@golang.org Reviewed-by: Junyang Shao shaojunyang@google.com Reviewed-by: David Chase drchase@google.com Auto-Submit: Gopher Robot gobot@golang.org

摘要按规则整理自下方来源原文

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