Incorrect macro expansion of nilable metaclass restriction

[Blacksmoke16]

https://play.crystal-lang.org/#/r/c1eo

I would have expected Bool? to use the Bool?.class overload, however it uses the parent. Commenting out the parent method reveals the cause:

31 | val = StringValue.new("true").get(Bool?)
^--
Error: no overload matches 'StringValue#get' with type (Bool | Nil).class

Overloads are:
- StringValue#get(as : Bool | ::Nil.class)
- StringValue#get(as : Bool.class)

The restriction is being treated as (Bool | Nil.class) instead of (Bool | Nil).class.

@HertzDevil pointed out on Discord this is a result of using record whereby the type restrictions of the expanded methods is incorrect. I.e. from the {{yield}}.

macro f(x)
  {% p x %}
end

f(x : Int32 | String.class)   # => x : Int32 | String.class
f(y : (Int32 | String).class) # => y : Int32 | String.class