Enable back the validity check on template_parser unit.

This bug has been fixed in 2014. At the same time this will
ensure that all units are compiled without having error being
fatal in release mode.

Part of N728-028.

Author: TurboGit

templates_parser.gpr

@@ -65,9 +65,6 @@ library project Templates_Parser is
    package Compiler is
       for Default_Switches ("Ada")
         use TP_Shared.Compiler'Default_Switches ("Ada");
-      for Switches ("templates_parser.adb")
-        use Compiler'Default_Switches ("Ada") & ("-gnatVn");
-      --  Disable validity check on those units to work-around N728-028
    end Compiler;
 
    package Binder renames TP_Shared.Binder;