Functionality not invoked for function-typed holes

[bplommer]

In the following example, I would expect a message Found hole with type: Char => Boolean, but there is none.

object Test {
  def foo(x: String): Boolean = x.exists(???)
}

[cb372]

Yeah, the plugin works by pattern matching on trees, and the list of patterns is pretty ad-hoc. This feels like a useful one to add.