maps: add All, Keys, Values, Insert, Collect
Fixed #61900.
Change-Id: Ic5962dc92b3102e7448635bef541414a2eaf415e
GitHub-Last-Rev:
3c6f74d6173c519ce090e22e724da04efff79022
GitHub-Pull-Request: golang/go#67521
Reviewed-on: https://go-review.googlesource.com/c/go/+/586716
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>