[Bug ada/99099] New: bogus error on generic formal derived tagged type

[stephen_leake--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99099

            Bug ID: 99099
           Summary: bogus error on generic formal derived tagged type
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: stephen_le...@stephe-leake.org
  Target Milestone: ---

Created attachment 50182
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50182&action=edit
source file

The attached code compiles with GNAT Community 2019 and 2020, but fails with
gcc 10.2:

$ gprbuild -p -P work.gpr
Setup
   [mkdir]        object directory for project work
Compile
   [Ada]          wisi.ads
   [Ada]          test_gen_emacs.adb
gen_emacs_wisi_lr_parse.ads:3:52: missing ";"
gprbuild: *** compilation phase failed