runtime: add race detector tips to reportZombies func
We can find a few issues finally turned out to be a race condition,
such as #47513. I believe such a tip can eliminate the need for developers
to file this kind of issue in the first place.
Change-Id: I1597fa09fde641882e8e87453470941747705272
GitHub-Last-Rev:
9f136f5b3bee78f90f434dcea1cabf397c6c05f2
GitHub-Pull-Request: golang/go#70331
Reviewed-on: https://go-review.googlesource.com/c/go/+/627816
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>