2008-05-20 Thomas Quinot <quinot@adacore.com>

	* exp_dist.adb
	(GARLIC_Support.Add_RACW_Read_Attribute): When a zero value is received,
	and the RACW is null-excluding, raise CONSTRAINT_ERROR instead of
	assigning NULL into the result, to avoid a spurious warning.
	(Add_RACW_Features, case Same_Scope): Add assertion that designated type
	is not frozen.
	(Add_Stub_Type): Set entity flag Is_RACW_Stub_Type on generated stub
	type.
	(Build_From_Any_Function, Build_To_Any_Function,
	Build_TypeCode_Function): For a type that has user-specified stream
	attributes, use an opaque sequence of octets as the representation.

From-SVN: r135626