Fix incorrect use of '[' rather than '{' in 'dg-...' directives.
gcc/testsuite/ChangeLog:
* gnat.dg/pack13.adb: Fix 'dg-...' directive syntax.
* gnat.dg/size_attribute.adb: Ditto.
* gnat.dg/subp_elim_errors.adb: Ditto.
--- [ dg-do compile }
+-- { dg-do compile }
package body Pack13 is
-- PR middle-end/35823
--- { dg-do compile ]
+-- { dg-do compile }
procedure Size_Attribute (Arg : in String) is
Size : constant Natural := Arg'Size;
--- [ dg-do compile }
+-- { dg-do compile }
with System;