Reviewing syntax highlight support in cgdb

[Iain Buclaw via Digitalmars-d]

Hi,

I'm currently making changes to cgdb, and would like to have 
someone give a quick view over the lexer rules.

https://github.com/cgdb/cgdb/blob/master/lib/tokenizer/dlexer.l

Having a skim over myself, I see @nogc needs adding, and probably 
c_long, cpp_long and other ABI compatibility types that the 
compiler recognises.

Anything else missing? Could be any feature, not just keywords.

Iain.