[PATCH] Restructure intrinsic operator parsing

[François-Xavier Coudert]

> For completeness, I'll post a patch for that shortly.  Unlike this
> intrinsic_operators patch, I don't have an ulterior motive

Thanks a lot Roger for your patches! It's indeed nice to clean these
parts of the front-end.

> but its a nice clean-up and may improve compile-time performance.

It's hard to measure exactly, but I think after that patch, the
front-end part of compilation will be I/O bound (for F95 code) by
module writing/loading.

FX