r177033 - in /trunk/gcc/ada: ChangeLog sem_ch4....

[charlet@gcc.gnu.org]

Author: charlet
Date: Mon Aug  1 13:33:29 2011
New Revision: 177033

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177033
Log:
2011-08-01  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Operator_Check): improve error message when both a
	with_clause and a use_clause are needed to make operator usage legal.
	* sem_util.ads, sem_util.adb (Unit_Is_Visible): new predicate to
	determine whether a compilation unit is visible within an other,
	either through a with_clause in the current unit, or a with_clause in
	its library unit or one one of its parents.


Modified:
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/sem_ch4.adb
    trunk/gcc/ada/sem_util.adb
    trunk/gcc/ada/sem_util.ads