2017-09-29  Justin Squirek  <squirek@adacore.com>

	* sem_ch8.adb (Note_Redundant_Use): Add guard to protect against false
	redundant warnings.

2017-09-29  Yannick Moy  <moy@adacore.com>

	* sinput-c.adb: Remove unused with-clause on Ada.Unchecked_Conversion.

2017-09-29  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/gnat_rm/representation_clauses_and_pragmas.rst: Minor rewording.
	* doc/gnat_rm/implementation_defined_pragmas.rst (Optimize_Alignment):
	Document the effect of pragma Optimize_Alignment (Space) on non-packed
	record types.
	* gnat_rm.texi: Regenerate.

From-SVN: r253284