2005-03-02 Martin Baulig <martin@ximian.com>

2005-03-02  Martin Baulig  <martin@ximian.com>

	* generic.cs
	(NullableType.Name, NullableType.FullName): Add a "?" to the name.
	(Nullable.LiftedConversion): Added support for user-defined
	conversions.

	* cs-tokenizer.cs (Tokenizer.PutbackCloseParens): New public method.

	* cs-parser.jay: Use ComposedCast everywhere instead of
	NullableType, so we don't need to check for NullableType
	everywhere.
	(conditional_expression): Added `INTERR CLOSE_PARENS' rule for the
	case where we'll be resolved into a `parenthesized_expression_0'
	afterwards.

	* convert.cs
	(Convert.UserDefinedConversion): Added nullable conversions.

svn path=/trunk/mcs/; revision=41342