[Bug fortran/89787] New: Fortran OpenACC 'routine' directive: parent namespace(s)

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89787

            Bug ID: 89787
           Summary: Fortran OpenACC 'routine' directive: parent
                    namespace(s)
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: openacc
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tschwinge at gcc dot gnu.org
                CC: aldot at gcc dot gnu.org
  Target Milestone: ---

See the suggested 'gfc_find_symtree' changes and then 'gfc_find_sym_tree'
comment in <https://gcc.gnu.org/ml/fortran/2018-10/msg00008.html>.  We'll need
to understand how to constuct such (nested?) namespaces, need test cases.