godot: Can no longer instantiate subclasses

Operating system or device: Arch Linux

Issue description (what happened, and what was expected): I get an “Invalid call. Nonexistent function ‘new’ in base ‘GDScript’.” error when I attempt to instantiate a subclass defined within a class file. This has worked in the past and broke within the last week in master.

Example:

var Bar = preload("Bar.gd")

class Foo:
    var x = 0
    func new(y):
        x = y


func _ready():
    # This works
    var bar = Bar.new(1)

    # This does not work
    var foo = Foo.new(1)

Steps to reproduce: I provided a simple sample project.

Link to minimal example project (optional but very welcome): SubclassTest.zip