compiler library entities should be visibility_external

ir/be/ia32/ia32_intrinsics.c

@@ -424,7 +424,7 @@ static ir_entity *create_compiler_lib_entity(const char *name, ir_type *type)
 		id = id_mangle3("__", id, "");
 	}
 	entity = new_entity(glob, id, type);
-	set_entity_visibility(entity, ir_visibility_local);
+	set_entity_visibility(entity, ir_visibility_external);
 	set_entity_ld_ident(entity, id);
 	return entity;
 }

ir/lower/lower_dw.c

@@ -2721,5 +2721,6 @@ ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op,
 
 	ent = new_entity(get_glob_type(), id, method);
 	set_entity_ld_ident(ent, get_entity_ident(ent));
+	set_entity_visibility(ent, ir_visibility_external);
 	return ent;
 }