[Bug modula2/123937] New: export from inner module is ignored

[whcox53 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123937

            Bug ID: 123937
           Summary: export from inner module is ignored
           Product: gcc
           Version: 15.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: modula2
          Assignee: gaius at gcc dot gnu.org
          Reporter: whcox53 at gmail dot com
  Target Milestone: ---

exports from an inner nodule are ignored and the modula front end says the
symbol was not exported. A trivial example:

IMPLEMENTATION MODULE m1;

        MODULE inner1;

        EXPORT P1;

        PROCEDURE P1;

        END P1;

        END inner1;

        MODULE inner2;

        FROM inner1 IMPORT P1;

        END inner2;
END m1.

$ gm2  m1.mod
m1.mod:17:9: error: In inner module ‘inner2’: symbol P1 is not exported from
definition or inner module inner1
   17 |         END inner2;
      |         ^~~
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