The gdb.fortran/info-types.exp test-case passes with gcc 7 (though not on
openSUSE, due to the extra debug info) and fails with gcc 4.8 and gcc 8.
Fix the gdb_test regexp to fix all those cases.
gdb/testsuite/ChangeLog:
2019-08-29 Tom de Vries <tdevries@suse.de>
* gdb.fortran/info-types.exp: Fix gdb_test regexp to allow more
diverse debug info.
* lib/fortran.exp (fortran_int8): New proc, based on fortran_int4.
8077c50dbb