test: add test that caused gofrontend compiler crash
test: add test that caused gofrontend compiler crash

Updates https://gcc.gnu.org/PR101994

Change-Id: I50dcb90e315792efd7d83b496034ad33b5f199e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/343874
Trust: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
Run-TryBot: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
TryBot-Result: Go Bot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Than McIntosh <4b2922593166fc595a9b1a408f34f5d3817fe9d2@google.com>

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