2009-07-15  Sergey Rybin  <rybin@adacore.com>

	* tree_in.ads, output.adb, tree_io.ads: Get rid of pragmas Warnings
	Off/On for with clause to System.OS_Lib - not needed any more.

2009-07-15  Ed Schonberg  <schonberg@adacore.com>

	* sem_warn.adb (Warn_On_Constant_Condition): if the constant condition
	is a literal of a derived boolean type, it appears as an unchecked
	conversion. Retrieve actual value from expression of conversion.

2009-07-15  Robert Dewar  <dewar@adacore.com>

	* sem_ch3.adb: Minor reformatting

	* lib-xref.ads, lib-xref.adb, lib.ads, par_sco.ads, par_sco.adb,
	lib-writ.ads, lib-writ.adb: Minor reformatting.
	Fix problem with SCO format in ALI files

From-SVN: r149674