2009-04-09  Robert Dewar  <dewar@adacore.com>

	* exp_util.adb (Silly_Boolean_Array_Xor_Test): Simplify existing code.

	* atree.h: Add Elist26

	* gnat_ugn.texi: Complete documentation deprecating -gnatN for non-gcc
	backends.

From-SVN: r145818