cmd/go: skip gccgo_link_c when cross-compiling
I don't understand the rationale given in
https://git.alpinelinux.org/aports/commit/community/go/tests-unset-GCCGO.patch?id=
a10e9a5e48507198e26a8cf19709e4059da4c79f,
but I suspect that it may be working around test failures when
cross-compiling, since we have a lot of other gccgo tests that need to
skip in that circumstance.
Alternatively, that may just be a stale patch working around #53815.
I can't fine any issue filed against the Go project for this patch,
so it's hard to be sure.
Either way, adding this skip should make the test more robust.
For #62053.
Change-Id: I44dbe9a5a24c0e2d3f22fbe6ca995160a36b2606
Reviewed-on: https://go-review.googlesource.com/c/go/+/520056
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>