Where are the semantics of shared defined?

[Kagamin via Digitalmars-d]

On Friday, 14 August 2015 at 18:52:42 UTC, rsw0x wrote:
> Is it really not documented anywhere of what shared actually 
> does currently?
> This is ridiculous.

Well, as specified, it modifies type and there's little beyond 
that :)
Maybe you want to see its design rationale? For some reason 
specifications don't provide rationale. Maybe they're supposed to 
be succinct or obviously understandable.