* exp_attr.adb (Expand_Attribute_Reference, case 'Valid): Reset the
Is_Known_Valid flag on the temporary created for the value whose
validity is being checked.
* sem.adb (Do_Unit_And_Dependents): Further code reorganization to
handle properly main units that are package specifications.
2009-07-27 Geert Bosch <bosch@adacore.com>
* einfo.ads (Checks_May_Be_Suppressed): Fix typo in comment
* sem_aux.ads: Fix typo in comment
* sem_util.ads (Is_LHS): Adjust comment to match body