Coffee script code inspection inconsistency

Hi,

This code

_add = (type) =>
  type + 1
_add v for v in viewType

... genarates a code inspection warning "Invalid number of parameters, expected 1"

whereas, this does not
_add = (type) =>
  type + 1
_add(v) for v in viewType

They generate the same js, and afaik should not show any warning?
~gillbert