__traits(getOverloads)

[Christopher Wright]

Hey, Walter --

Could we get __traits(getOverloads) to get virtual and non-virtual 
overloads for a symbol? I have a dependency injection library that works 
by getting the constructor arguments for a type and building those 
dependencies recursively. But sometimes it's convenient to have a 
no-arguments constructor for tests and such, and my library should skip 
that if it exists.

I can't get methods from tupleof, and allMembers doesn't give overloads, 
or I'd go with a template solution.