[Patch, fortran] PR37583 - ICE "insert_bbt(): Duplicate key" for self-calling ENTRY subprogram

[Tobias Burnus]

Paul Richard Thomas wrote:
> The attached patch fixes the problem and throws an error if the
> subroutine is not recursive.
>
> Bootstraps and regtests on x86_ia64/FC8 - OK for trunk
> (with a changelog)?

OK. Thanks for the quick patch.

Tobias