widl: Use %define parse.error verbose instead of %error-verbose.

The latter is deprecated and causes warnings.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

tools/widl/parser.y

@@ -318,7 +318,7 @@ static typelib_t *current_typelib;
 %right '!' '~' CAST PPTR POS NEG ADDRESSOF tSIZEOF
 %left '.' MEMBERPTR '[' ']'
 
-%error-verbose
+%define parse.error verbose
 
 %%