dylan-lang/opendylan — pull request #669 by hannesm (2014-02-01 19:01:45+00:00)
Title: Rework tracing support

I was slightly unhappy with it:
* dylan-compiler required network and serialization library
* filtering was implemented in a bad way
* it modified way too much of compiler internals

Now, the interface is not via an external TCP/IP socket, but I rather importing the dfmc-flow-graph library and setting the value of *trace-dfm-callback* and other variables; which also provides a unified filter.