cmd/compile: change the multiple (gossa)hash separator from ; to /
Semicolon has bad copy-paste ergonomics; it requires quoting.
Slash is okay, and won't be a separator ever in debug strings
because it is already used in e.g. ssa/phase/debug=etc.
Change-Id: I493360e9282666eea1a342971a77df2ebd6c92ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/447975 Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>