Certainly, but I'm not quite sure what you have in mind exactly.

In the long run I would like to replace the `METHOD_DEF` logic by a function that operates on nodes, instead of regexp-matching a temporary compilation. That would then be utilized here as well. But this PR is just meant as a band-aid to get those issues fixed before 1.7

Or did you just look for something like

  ```coffee
    else if node instanceof Assign and
            node.variable.base.value in ['this', name] and
            prop = node.variable.properties[0] and
            name = prop.name and
            name.value isnt 'prototype'
  ```