Fixed as follows.
2019-01-04 Bruno Haible <address@hidden>
Fix link errors in unit tests.
Reported by Tom G. Christensen <address@hidden>.
* modules/bitset-tests (Makefile.am): Link test-bitset against libintl.
* modules/array-map-tests (Makefile.am): Link test-array_map against
libintl.
* modules/array-set-tests (Makefile.am): Link test-array_set against
libintl.
* modules/hash-map-tests (Makefile.am): Link test-hash_map against
libintl.
* modules/hash-set-tests (Makefile.am): Link test-hash_set against
libintl.
* modules/linkedhash-map-tests (Makefile.am): Link test-linkedhash_map
against libintl.
* modules/linkedhash-set-tests (Makefile.am): Link test-linkedhash_set
against libintl.