Release D 2.087.0

[Mike Franklin]

On Monday, 15 July 2019 at 12:27:22 UTC, Vladimir Panteleev wrote:

> This isn't exactly true. The restriction is that core should 
> not *import* rt. Have a look at all the extern(C) definitions 
> in Druntime - using extern(C) functions to communicate between 
> the compiler and rt, as well as core and rt, is not a "hack", 
> but an established mechanism to invoke the low-level 
> implementations in Druntime.

We are trying to implement many of those `extern(C)` runtime 
hooks as templates.  Those templates need to be implicitly 
imported through object.d.  That means code that was in `rt` is 
converted to a template, and then moved to object.d.  However, as 
we do more and more of them object.d becomes unwieldy.

I took the initiative to prevent object.d from turning into a 
more of a monstrosity that it already is, and moved those runtime 
templates (which used to reside in `rt`) back into `rt`.

Mike