Check case of user-defined types.

ChangeLog

 2001-04-28  Per Cederqvist  <ceder@moria>
 
+	Check case of user-defined types.
+	* doc/checkargs.py (lexer.__init__): Set __builtin_types,
+	__builtin_aggregates, __builtin_typelike, __tindex_seen and
+	__types_used.
+	(lexer.__seen_type): New method.
+	(lexer.toplevel_tindex): Implement.
+	(lexer.__parse_userdefined_types): New method, not yet
+	implemented.
+	(lexer.__bad_type): Check that the casing rules for user-defined
+	types are adhered to.
+	* doc/Protocol-A.texi (set-pers-flags): Fixed typo.
+
 	Check @linkhere usage.  Stricter parens checking.
 	* doc/checkargs.py (reader.check_paren_null): New name for former
 	check_paren_eof.  All callers updated.  Clear __parenstack, so