Generic type parameter in class level initialization

[jbomanson]

The code

class AA(T)
  @value = T.new(0)
end

brings up the following error

Error in class_level_generic_new.cr:2: undefined method 'new' for T:Class

  @value = T.new(0)

However, I think it should work identically to the following code, which does compile:

class AA(T)
  def initialize
    @value = T.new(0)
  end
end

With this, you can create objects like AA(Int32).new and AA(Int64).new.

The first variant used to work as well with crystal 0.18.7.
It appears to have stopped working from version 0.19.0 onward, based on testing in play.crystal-lang.org.
My crystal --version is Crystal 0.21.1 [3c6c75e] (2017-03-06) LLVM 3.5.0 and OS is ubuntu 16.04.