2011-08-02  Robert Dewar  <dewar@adacore.com>

	* a-direct.adb, sinfo.ads, exp_ch9.adb, scng.adb, sem_util.adb,
	sem_util.ads, restrict.ads, par-prag.adb: Minor reformatting and/or
	code reorganization.

2011-08-02  Robert Dewar  <dewar@adacore.com>

	* debug.adb: Debug flag d.P to suppress length comparison optimization
	* exp_ch4.adb (Optimize_Length_Comparison): New routine to optimize
	comparison of Length by comparing First/Last instead.

2011-08-02  Matthew Heaney  <heaney@adacore.com>

	* a-cobove.ads: Code clean up.

From-SVN: r177190