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 <khr@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>

src/reflect/all_test.go

@@ -7635,7 +7635,7 @@ func TestSetIter(t *testing.T) {
 		k.SetIterKey(i)
 	})
 	shouldPanic("Value.SetIterValue called before Next", func() {
-		k.SetIterValue(i)
+		v.SetIterValue(i)
 	})
 	data2 := map[string]int{}
 	for i.Next() {
@@ -7650,7 +7650,7 @@ func TestSetIter(t *testing.T) {
 		k.SetIterKey(i)
 	})
 	shouldPanic("Value.SetIterValue called on exhausted iterator", func() {
-		k.SetIterValue(i)
+		v.SetIterValue(i)
 	})
 
 	i.Reset(m)