[m-rev.] for post-commit review: simplify management of smart indexing

[Zoltan Somogyi]

2023-04-03 10:02 GMT+10:00 "Zoltan Somogyi" <zoltan.somogyi at runbox.com>:
> This diff was tickled by a reference to switch_gen.m in a post
> on reddit.com/r/Compilers, of all things. For review by anyone.

I forgot to mention: the diff is with -b.

Zoltan.