anchor.diff:  
   [source,text]
   ----
  -let r = Foo.Bar.f()
  +let r = foo.Bar.f()
   ----
   
   Of course, we may also take advantage of an `import` statement:
  
positive.code: 
  === Functions from other modules and imports ===
  
  Suppose that we have a module `Foo.Bar`:
  
  [source,text]
  ----
  module Foo.Bar
  
  function f = {
    return "f()"
  
negative.code: ----
  module Somewhere.Else
  
  import foo.Bar
  
  function plop = {
    return f()
  