This is intended to simplify future experiments/changes.
It does slightly change the fixedpoint order (across all
functions in a func+closures set or recursive set, but
that seems not to affect tests or benchmarks).
Change-Id: I80bcaabf277b317523e538f5fd4d2ff6dc08c033
Reviewed-on: https://go-review.googlesource.com/c/go/+/630595 Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@golang.org>