t.Errorf(
					"#%d: v.%s() returned %t for type %T, want %t",
					i,
					ops[j],
					got[j],
					tc.i,
					tc.want[j],
				)
			}
		}
	}
}

func TestCanSetField(t *testing.T) {
	type embed struct{ x, X int }
	type Embed struct{ x, X int }
	type S1 struct {
		embed
		x, X int
	}
	type S2 struct {
		*embed
		x, X int
	}
	type S3 struct {