gh-115999: Restore SET_OPCODE_OR_RETURN removed in GH-126414

[serhiy-storchaka]

• Issue: Make the specializing interpreter thread-safe in --disable-gil builds #115999

[mpage]

Thanks for putting up a fix so quickly. @Eclips4 put up #126517, which I'd prefer we merge, since it preserves the intent of the original change (to remove the macro).