LSP Language Server Discussion

[ryuukk_]

I just realized that ``-vcg-ast`` already exist for DMD, wich can 
already solve the templates problem!

Question: is it possible for that output to go to stdout rather 
than create a file next to the module? ``mumodule.d.gc`` so it 
could be integrated in serve-d, i wrote down an idea here: 
https://github.com/Pure-D/serve-d/issues/323


Another question, why ``-vcg-ast`` isn't documented in the ``dmd 
--help`` menu, not even on the wiki 
https://dlang.org/dmd-linux.html?