B-C: c.t 27 flaps under cygwin also

Author: rurban

cpan/B-C/t/c.t

@@ -21,6 +21,6 @@ my @skip = ();
 #push @skip, 29 if $] > 5.015; #hangs at while Perl_hfree_next_entry hv.c:1670
 push @skip, (21,38) if $^O eq 'cygwin'; #hangs
 # 38 hangs in IO reading from /dev/null
-push @todo, (44,45) if $^O eq 'cygwin'; #SEGV
+push @todo, (27,41,44,45,49) if $^O eq 'cygwin'; #SEGV
 
 run_c_tests("C", \@todo, \@skip);