Tango bind functionality

[Jason House]

I've found http://www.dsource.org/projects/tango/ticket/396 which 
indicates that bind functionality is indefinitely postponed.  It's even 
marked as a closed ticket!

I'm in the process of porting code over from phobos to tango.  All I 
have left to do is resolve all of my calls to bind.

I'm using delegates as generic signaling between threads.  The problem 
is that creating a delegate on the fly (using {}) won't work in many 
cases.  Because of the async nature, the local stack frame won't be 
available and all accesses to variables are lost.  It's a real hack to 
manually create helper objects (with a constructor and opCall function) 
for simple things that can be replaced with bind(&foo.bar, a, b)

Even if not part of tango, does anyone have any generic tango-based 
solution for this?  (Note that the phobos implementation of bind does 
not work completely in gdc 0.23.  I'm hesitant to just copy the phobos 
implementation)