This adds failing test cases for two hackage import bugs: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=25138 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=35743 * tests/hackage.scm: Make comment style consistent. Add two cabal parsing tests, marked as expected failures. Signed-off-by: Ludovic Courtès <ludo@gnu.org>