gdb: add type::has_varargs / type::set_has_varargs

Add the `has_varargs` and `set_has_varargs` methods on `struct type`, in
order to remove the `TYPE_VARARGS` macro.  In this patch, the macro is
changed to use the getter, so all the call sites of the macro that are
used as a setter are changed to use the setter method directly.  The
next patch will remove the macro completely.

gdb/ChangeLog:

	* gdbtypes.h (struct type) <has_varargs, set_has_varargs>: New methods.
	(TYPE_VARARGS): Use type::has_varargs, change all write call sites to
	use type::set_has_varargs.

Change-Id: I898a1093ae40808b37a7c6fced7f6fa2aae604de

1 files changed, 1 insertions, 1 deletions

diff --git a/gdb/eval.c b/gdb/eval.c
index 7f9515b..d87b8da 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -665,7 +665,7 @@ fake_method::fake_method (type_instance_flags flags,
       if (param_types[num_types - 1] == NULL)
 	{
 	  --num_types;
-	  TYPE_VARARGS (type) = 1;
+	  type->set_has_varargs (true);
 	}
       else if (check_typedef (param_types[num_types - 1])->code ()
 	       == TYPE_CODE_VOID)