2012-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* freeze.adb (Check_Current_Instance): Issue an
	error when the prefix of 'Unchecked_Access or 'Access does not
	denote a legal aliased view of a type.
	(Freeze_Record_Type): Do not halt the processing of record components
	once the Has_Controlled_Component is set as this bypasses the remaining
	checks.
	(Is_Aliased_View_Of_Type): New routine.

2012-01-23  Thomas Quinot  <quinot@adacore.com>

	* errout.ads, freeze.adb: Minor reformatting.

2012-01-23  Thomas Quinot  <quinot@adacore.com>

	* sem_ch10.adb, sem_prag.adb: Remove redundant apostrophes in error
	messages.

2012-01-23  Olivier Hainque  <hainque@adacore.com>

	* adadecode.c (__gnat_decode): Deal with empty input early,
	preventing potential erroneous memory access later on.

From-SVN: r183407