internal/msan: add new package
The internal/msan package contains helper functions for manually
instrumenting code for the memory sanitizer. It exports the private
msan routines in runtime unconditionally, making the functions a
no-op if the build flag "msan" is not present.
For #64611
Change-Id: If43f29e112ac79a47083c9dbdf2c61a0641e80b1
GitHub-Last-Rev:
0a644bd6f10a9052c33992f1c56b1f0037ca98c7
GitHub-Pull-Request: golang/go#64637
Reviewed-on: https://go-review.googlesource.com/c/go/+/548676
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>