2011-11-04  Robert Dewar  <dewar@adacore.com>

	* exp_ch2.adb (Expand_Entity_Reference): Do not set
	Atomic_Sync_Required for the case of a prefix of an attribute.
	* exp_ch4.adb (Expand_N_Explicit_Dereference): May require
	atomic synchronization
	(Expand_N_Indexed_Component): Ditto.
	(Expand_B_Selected_Component): Ditto.
	* sem_prag.adb (Process_Suppress_Unsuppress):
	Disable/Enable_Atomic_Synchronization can now occur for array
	types with pragma Atomic_Components.
	* sinfo.ads, sinfo.adb (Atomic_Sync_Required): Can now occur on
	N_Explicit_Dereference nodes and on N_Indexed_Component nodes.

2011-11-04  Gary Dismukes  <dismukes@adacore.com>

	* gnat_ugn.texi: Editorial corrections for gnattest section.

From-SVN: r180943