2008-09-14 Daniel Morgan <monodanmorg@yahoo.com>

	* Test/TestOracleClient.cs: add tests for parameters
	of oracle type CLOB, add tests for setting oracle type
	directly or inferred via the value, and
	clean up compile warnings

	* System.Data.OracleClient/OracleParameter.cs: fix
	for handling parameters of oracle type CLOB for
	Input, Output, and Return.  InputOutput is not supported.
	And handle CLOB parameters that are DBNull.Value or
	their value length is zero.

svn path=/trunk/mcs/; revision=112948