[Bug ipa/85449] [8 Regression] Wrong specialization is called in self recursive functions after r259319

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85449

--- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> ---
I believe I understand the issue and will prepare a testcase from scratch. 
Possibly after I test/submit the patch if it takes too long.  Thanks for your
effort!