Ruby: Include more nodes in {Hash,Array}LiteralCfgNode

[hvitved]

Removes the requirement that the Hash/Array reference must be qualified with ::.

[hmac]

I have a couple of questions:

1. Will we erroneously include things like this?

module A
  class Array
    # def self.[] ...
  end
  
  def f
    Array[1, 2]
  end
end

2. Can we add a test to show the new cases we catch?

[hvitved]

1. Will we erroneously include things like this?

I believe that class will have qualified name A::Array and not Array.

[hvitved]

2. Can we add a test to show the new cases we catch?

There was already a test with updated expected output; is that ok?