2009-07-13  Thomas Quinot  <quinot@adacore.com>

	* s-oscons-tmplt.c: Add comment.

2009-07-13  Robert Dewar  <dewar@adacore.com>

	* sinfo.adb, sinfo.ads, sem_util.adb, atree.adb, atree.ads: Minor
	reformatting. Minor code reorganization (add 9 argument version of
	Nkind_In).

	* impunit.adb: Remove s-os_lib from list of system extensions.

	* sem_util.ads: Minor reformatting

	* output.adb: Add warnings off/on around System.OS_Lib.

From-SVN: r149583