[Bug other/79874] New: symtab_node::verify_base: replace error with internal_error

[roland.illig at gmx dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79874

            Bug ID: 79874
           Summary: symtab_node::verify_base: replace error with
                    internal_error
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roland.illig at gmx dot de
  Target Milestone: ---

As detailed in PR/79596, as a translator I don't see any value in translating
internal compiler error messages.

The messages in symtab_node::verify_base all look to me like internal errors.
Therefore they should call internal_error instead of error.