reflect: fix SetIter test
reflect: fix SetIter test

Missed one review comment in CL 356049

Change-Id: I05be585d15e77afc1aa57b737cdc8ba7204bab98
Reviewed-on: https://go-review.googlesource.com/c/go/+/356051
Trust: Keith Randall <8c99c3a9284e493be632950b84cd789d08ed3e9d@golang.org>
Trust: Josh Bleecher Snyder <cdc248cc4d32e4fbfe04e45228163bcecd48a0b9@gmail.com>
Run-TryBot: Keith Randall <8c99c3a9284e493be632950b84cd789d08ed3e9d@golang.org>
Reviewed-by: Josh Bleecher Snyder <cdc248cc4d32e4fbfe04e45228163bcecd48a0b9@gmail.com>
TryBot-Result: Go Bot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

nawawi/go,CAFxX/go,cloudflare/go,cloudflare/go,nawawi/go,nawawi/go,CAFxX/go,golang/go,golang/go,CAFxX/go,golang/go,cloudflare/go,nawawi/go,nawawi/go,CAFxX/go,cloudflare/go,golang/go,golang/go,nawawi/go,golang/go,CAFxX/go,CAFxX/go,golang/go,nawawi/go,CAFxX/go,cloudflare/go,golang/go,cloudflare/go,cloudflare/go,cloudflare/go,CAFxX/go,nawawi/go