[Discuss-gnuradio] GRC code generator bug

[Marcus D. Leech]

Version info:  v3.7.10.1-30-g0bfbc97d

If you have a flow-graph variable that is complex, and you pass it to a 
function as:

var.real, var.imag

The variable-recognizer doesn't seem to recognize that this is a 
flow-graph variable, and insert the correct "self" syntax in front of 
it, thus
  generating code that raises an exception.

In this case, the flow-graph variable comes from a function probe that 
is probing a (complex) signal probe.