* sem_warn.adb, einfo.ads, exp_ch4.adb: Minor comment fix
* sem_case.adb: Comment clarification for loops through false
predicates.
* sem_util.adb: Minor reformatting
(Check_Order_Dependence): Fix bad double blank in error message
2010-10-25 Ed Schonberg <schonberg@adacore.com>
* sem_ch4.adb (Analyze_Membership_Op): in Ada_2012 a membership
operation can have a single alternative that is a value of the type.
Rewrite operation as an equality test.