gdb_test "python print(gdb.lookup_type('char').array(1, -1))" \
"Array length must not be negative.*"
+gdb_test "python print(gdb.lookup_type('int').optimized_out())" \
+ "<optimized out>"
+
with_test_prefix "lang_c" {
runto_bp "break to inspect struct and array."
test_fields "c"