support return types

[mchristianl]

Hi,

Thank you for this package to obtain a function's source code!

I am just starting out experimenting and found, that return type annotations might not be supported:

function f(x::Int64)
  return x*x + x
end
function g(x::Int64)::Int64
  return x*x + x
end
println("f = $(definition(String,which(f,(Int64,))))")
println("g = $(definition(String,which(g,(Int64,))))")

gives

f = ("function f(x::Int64)\n  return x*x + x\nend", 901)
g = nothing

would it be difficult to add this functionality?

kind regards,
Christian