runtime: mark testSetPanicOnFault as go:nocheckptr

The test deliberately constructs an invalid pointer, so don't check it.

Fixes #35379

Change-Id: Ifeff3484740786b0470de3a4d2d4103d91e06f5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/205717Reviewed-by: Matthew Dempsky <mdempsky@google.com>

src/runtime/runtime_test.go

@@ -192,6 +192,10 @@ func TestSetPanicOnFault(t *testing.T) {
 	}
 }
 
+// testSetPanicOnFault tests one potentially faulting address.
+// It deliberately constructs and uses an invalid pointer,
+// so mark it as nocheckptr.
+//go:nocheckptr
 func testSetPanicOnFault(t *testing.T, addr uintptr, nfault *int) {
 	if GOOS == "js" {
 		t.Skip("js does not support catching faults")