2012-01-23  Robert Dewar  <dewar@adacore.com>

	* sem_ch10.adb (Analyze_Subunit): Properly save/restore cunit
	restrictions.

2012-01-23  Ed Schonberg  <schonberg@adacore.com>

	* snames.ads-tmpl: Add Name_Synchronization.
	* aspects.ads, aspects.adb: Add Aspect_Synchronization to
	enumeration type and related maps.
	* sem_ch13.adb (Analyze_Aspect_Specifications): Handle Aspect
	Synchronization, build corresponding pragma Implemented.
	* sem_util.adb (Implementation_Kind): Handle both explicit and
	implicit pragma_argument association to retrieve the given
	synchronization mode.

From-SVN: r183410