2015-02-05  Robert Dewar  <dewar@adacore.com>

	* g-rannum.adb, g-rannum.ads, s-rannum.adb, s-rannum.ads,
	sem_warn.ads: Minor reformatting.
	* exp_ch13.adb (Expand_N_Freeze_Entity): Add guard for aspect
	deleted by -gnatI.
	* sem_prag.adb (Analyze_Pragma, case Type_Invariant): Give
	error for abstract type.

From-SVN: r220445