gdb/fortran: Don't include module symbols when searching for types

Currently the 'info types' command will return symbols that correspond
to Fortran modules.  This is because the symbols are created with
domain MODULE_DOMAIN and address_class LOC_TYPEDEF.  The address_class
LOC_TYPEDEF is the same address_class used for type symbols which is
why the modules show up when listing types.

This commit explicitly prevents symbols in the MODULE_DOMAIN from
appearing when we search for symbols in the TYPES_DOMAIN, this
prevents the Fortran module symbols from appearing in the output of
'info types'.

gdb/ChangeLog:

	* symtab.c (search_symbols): Don't include MODULE_DOMAIN symbols
	when searching for types.

gdb/testsuite/ChangeLog:

	* gdb.fortran/info-types.exp: Add module.
	* gdb.fortran/info-types.f90: Update expected results.

2 files changed, 14 insertions, 1 deletions

diff --git a/gdb/testsuite/gdb.fortran/info-types.exp b/gdb/testsuite/gdb.fortran/info-types.exp
index 9571dc4..81e6739 100644
--- a/gdb/testsuite/gdb.fortran/info-types.exp
+++ b/gdb/testsuite/gdb.fortran/info-types.exp
@@ -42,4 +42,6 @@ gdb_test "info types" \
 	 "\[\t \]+${character1}" \
 	 "\[\t \]+${integer4}" \
 	 "\[\t \]+${logical4}" \
-	 "16:\[\t \]+Type s1;" ]
+	 "20:\[\t \]+Type __vtype_mod1_M1t1;" \
+	 "17:\[\t \]+Type m1t1;" \
+	 "22:\[\t \]+Type s1;" ]
diff --git a/gdb/testsuite/gdb.fortran/info-types.f90 b/gdb/testsuite/gdb.fortran/info-types.f90
index 21c9d9d..0e27e1d 100644
--- a/gdb/testsuite/gdb.fortran/info-types.f90
+++ b/gdb/testsuite/gdb.fortran/info-types.f90
@@ -13,13 +13,24 @@
 ! You should have received a copy of the GNU General Public License
 ! along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+module mod1
+  type :: m1t1
+     integer :: b
+  end type m1t1
+end module mod1
+
 program info_types_test
+  use mod1
+
   type :: s1
      integer :: a
   end type s1
 
   logical :: l
   type (s1) :: var_a
+  type (m1t1) :: var_b
+
   var_a%a = 1
+  var_b%b = 2
   l = .FALSE.
 end program info_types_test