[dev.fuzz] cmd/go: exclude additional packages from fuzzing instrumentation
Counters in these packages are incremented by background goroutines
for testing and internal/fuzz. They cause some inputs to seem
"interesting" when they don't directly provide new coverage.
Updates golang/go#46410
Change-Id: Ibe6bb3177f3b2ba23382a1693a4c6a576f94a423
Reviewed-on: https://go-review.googlesource.com/c/go/+/342993
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com> Reviewed-by: Roland Shoemaker <roland@golang.org>