(make_node): Fix typo in July 6 change:

assignment of DECL_IN_SYSTEM_HEADER was inserted in bad place.

From-SVN: r2011

gcc/tree.c

@@ -896,9 +896,9 @@ make_node (code)
 
     case 'd':
       if (code != FUNCTION_DECL)
+	DECL_ALIGN (t) = 1;
       DECL_IN_SYSTEM_HEADER (t)
 	= in_system_header && (obstack == &permanent_obstack);
-      DECL_ALIGN (t) = 1;
       DECL_SOURCE_LINE (t) = lineno;
       DECL_SOURCE_FILE (t) = (input_filename) ? input_filename : "<built-in>";
       DECL_UID (t) = next_decl_uid++;