* 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.