cmd/cue: test how `cue get go` generates invalid CUE attributes
This breaks the generated syntax momentarily to show the bug.
For #3436.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Change-Id: Ie431eb6c4962f5113aaed09c15e7b1a12cd8af01
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1227727
Reviewed-by: Roger Peppe <rogpeppe@gmail.com>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>