nullable issue when linking cobra lib

[gauthier]

while this run fine in single assembly:

class Foo
	pro bar from var as DateTime?
class Program
	shared
		def main
			date = DateTime.utcNow
			foo = Foo(bar = date)
			print foo.bar

this give

nullable.cobra(1): error: Incompatible types. Cannot assign value of type DateTime on the right to Nullable<of DateTime> on the left.
Compilation failed - 1 error, 0 warnings
Not running due to errors above.

when splitted, and

nullable.cobra(1): error: Incompatible types. Cannot assign value of type DateTime? on the right to Nullable<of DateTime> on the left.
Compilation failed - 1 error, 0 warnings
Not running due to errors above.

when issuing "to ?" from main

[Chuck]

The culprit is that Cobra is not recognizing .NET's Nullable<of X> as X?. I'm surprised this wasn't reported earlier! Fixing now.

[Chuck]

Fixed in changeset:1908