runtime: apply looser bound to /gc/heap/live:bytes in test
/gc/heap/live:bytes may exceed MemStats.HeapAlloc, even when all data is
flushed, becuase the GC may double-count objects when marking them. This
is an intentional design choice that is largely inconsequential. The
runtime is already robust to it, and the condition is rare.
Fixes #60607.
Change-Id: I4da402efc24327328d2d8780e4e49961b189f0ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/501858
Auto-Submit: Michael Knyszek <mknyszek@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>