I should be able to have comments mid-Expression

(Bug, Closed -> Fixed, Priority: Critical, Test Status: Unit tested , Reported By Bad Link: Thing 3y284oe not found, )
Summary: Comments aren't working in some places where they obviously should be. Why not?
Examples of desireable but not-currently-working code from Eric:
Some Stuff -> +$named-reference
// I do this because...
$named-reference -> Other Stuff
and
Some Stuff ->
  // Only recent items
  _filter(...) ->
  // Remove all the widgets
  _filter(...) -> 
  _bulleted
This is surely a parser weakness. Let's see if it is low-hanging-fruit to fix.