Skip toplevel tests in -no-shared-libs
Skip toplevel tests in -no-shared-libs

If the toplevel doesn't support shared libraries, skip any toplevel
tests which will load cma files which have C stubs (e.g. unix.cma). The
present implementation is suboptimal - really, it would be better to
create a custom toplevel, but it only affects one test at the moment.

gerdstolpmann/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml