btf: check hash maps are non-null before emptying

[official-gcc.git] / gcc / testsuite / gnat.dg / specs / tag1.ads

-- { dg-do compile }

package tag1 is
   type T is tagged limited record
      Y : access T'Class;    --  OK
      X : access Tag1.T'Class;  --  Problem
   end record;
end tag1;