raise-gcc.c (exception_class_eq): Make ec parameter const.

2017-05-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * raise-gcc.c (exception_class_eq): Make ec parameter const.

From-SVN: r247836

gcc/ada/ChangeLog

+2017-05-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* raise-gcc.c (exception_class_eq): Make ec parameter const.
+
 2017-05-02  Richard Biener  <rguenther@suse.de>
 
 	* gcc-interface/misc.c (gnat_post_options): Do not set

gcc/ada/raise-gcc.c

@@ -909,7 +909,8 @@ extern struct Exception_Data Non_Ada_Error;
 /* Return true iff the exception class of EXCEPT is EC.  */
 
 static int
-exception_class_eq (const _GNAT_Exception *except, _Unwind_Exception_Class ec)
+exception_class_eq (const _GNAT_Exception *except,
+		    const _Unwind_Exception_Class ec)
 {
 #ifdef __ARM_EABI_UNWINDER__
   return memcmp (except->common.exception_class, ec, 8) == 0;