Re: Module Introspection

[timothee]

I had a PR for that but krux02 closed it (see 
[https://github.com/nim-lang/Nim/pull/9560)](https://github.com/nim-lang/Nim/pull/9560\));
 I've been using it (and subsequent improvements of it) in my own patched nim 
compiler and it is very useful; one use case is enabling things like nim doc in 
user code; other use cases are for REPL's (analog to python's __dict__ etc) and 
other cmd line utiliies.