[tree-ssa, obvious] Fix bootstrap failure

[Jan Hubicka]

I didn't find changelog entry on when the change went in, but it looks
correct so I just added missing default to let bootstrap pass.

Honza

2003-12-05  Jan Hubicka  <jh@suse.cz>
	* tree-eh.c (tree_could_trap_p): Fix warning.
Index: tree-eh.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/Attic/tree-eh.c,v
retrieving revision 1.1.2.19
diff -c -3 -p -r1.1.2.19 tree-eh.c
*** tree-eh.c	5 Dec 2003 14:06:09 -0000	1.1.2.19
--- tree-eh.c	5 Dec 2003 16:19:42 -0000
*************** tree_could_trap_p (tree expr)
*** 1686,1691 ****
--- 1686,1693 ----
      case ROUND_MOD_EXPR:
      case TRUNC_MOD_EXPR:
        return true;
+     default:
+       break;
      }
  
    return false;