2014-07-29 Robert Dewar <dewar@adacore.com>
* gnat_rm.texi: Document pragma Unevaluated_Use_Of_Old.
* opt.adb: Handle Uneval_Old.
* opt.ads (Uneval_Old, Uneval_Old_Config): New variables.
* par-prag.adb: Add dummy entry for pragma Unevaluated_Use_Of_Old.
* sem.ads (Save_Uneval_Old): New field in Scope_Stack_Entry.
* sem_attr.adb (Uneval_Old_Msg): New procedure.
* sem_ch8.adb (Push_Scope): Save Uneval_Old.
(Pop_Scope): Restore Uneval_Old.
* sem_prag.adb (Analyze_Pragma, case Unevaluated_Use_Of_Old):
Implemented.
* snames.ads-tmpl: Add entries for pragma Unevaluated_Use_Of_Old
Add entries for Name_Warn, Name_Allow.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213160
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