2008-01-09  Jb Evain  <jbevain@novell.com>

	* ExpressionTest_ArrayLength.cs: Fix Rank2String to pass on .net.

2008-01-09  Jb Evain  <jbevain@novell.com>

	* ExpressionTest_Call.cs: fix wrong test.

2008-01-09  Jb Evain  <jbevain@novell.com>

	* ExpressionTest_TypeAs.cs: correct wrong test for numerics.
	Add test for nullable types.