RFR(S): 8223249: [s390] Cleanup TemplateInterpreterGenerator::generate_fixed_frame

[Doerr, Martin]

Hi Coleen,

> This looks better because it's nice when all the platforms have the same 
> function names.
Definitely, yes.

> I can't really review the s390 code but seems plausible anyway.
I'll wait for s390 experts to find some time. Thank you for taking a look and helping to improve it.

Best regards,
Martin