dmd AST class hierarchy as dot file

[David Nadlinger via Digitalmars-d]

On Sunday, 20 September 2015 at 17:26:22 UTC, Andrei Alexandrescu 
wrote:
> It would be great to include the grammar graph build as an 
> optional target in the dlang.org makefile so we can publish the 
> resulting .gif on the site. Guillaume, could you put a PR 
> together?

Not sure how helpful this would be for users as it merely 
describes the DMD internals. For example, AggregateDeclarations 
are not Declarations.

  — David