How can we make it easier to experiment with the compiler?

[Dukc]

On Monday, 24 May 2021 at 22:21:46 UTC, Walter Bright wrote:
> `core` is a separate library in its own, independent hierarchy, 
> it is not in the `std` hierarchy. It is not "up sideways and 
> down". So it's good.

Shouldn't the same reasoning apply to `import`ing `dmd.root` from 
`dmd.backend`? if I understood right, `dmd.root` is designed to 
act like an external utility library. It should be no problem to 
`import` it, as long as `dmd.root` does not try to import rest of 
DMD.

>
> Now, if std.stdio imported core.stdc.stdio, and core.stdc.stdio 
> imported std.stdio, then you've got a really bad design.

It sounds like your real issue is circular imports, not parent 
package imports. That sounds more reasonable to me.