[Bug other/114191] Flags "Warning" and "Target" don't mix well in target.opt files

[gjl at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114191

--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> How did you specify 'Target'?

Like:

Wmisspelled-isr
Target Warning C C++ Var(avr_warn_misspelled_isr) Init(1)
Warn if the ISR is misspelled, ...