2011-08-29  Robert Dewar  <dewar@adacore.com>

	* sem_ch6.adb, exp_ch3.adb, s-stposu.adb, a-undesu.ads,
	a-undesu.adb: Minor reformatting.

2011-08-29  Ed Schonberg  <schonberg@adacore.com>

	* exp_disp.adb (Check_Premature_Freezing): When building a dispatch
	table, accept an unfrozen untagged component if it is an actual for a
	formal incomplete type.
	* a-convec.ads, a-convec.adb: Instantiate Ada.Iterator_Interfaces to
	provide new iterator forms over vectors.
	Introduce type Iterator in package body to implement operations of
	Reversible_Iterator interface.
	* a-iteint.ads: Make package pure so it is usable with new container
	packages, that are categorized Remote_Types.

From-SVN: r178211