Allow for usage of floats in ranges

[flaviut]

type Foo = range[0.0..1.0]

fails because 0.0 and 1.0 must be ordinals. I'm not really sure this might be solved.

[fowlmouth]

What do you need to use it for?

[flaviut]

type
  TColorComponent = range[0.0..1.0]
  TColor = object
    red: TColorComponent 
    green: TColorComponent
    blue: TColorComponent
    alpha: TColorComponent

type
  TClampedFloat = range[0.0..1.0]

proc randomFloat(): TClampedFloat =
  # Returns a float within [0.0, 1.0]. Crashes if it tries to return
  # something out  of bounds
  ...

[cooldome]

Can be closed now