One-way collision shape does not work with KinematicBody2D

[Ralsei19]

Version:
v3.1.beta2.official (Jan-2019)

Issue description:
While one-way collision shape works fine with static bodies, they do not work with kinematic body.
(Or at least not with move_and_slide functionality.)

Steps to reproduce:

1. Make any kinematic body with a collision shape, let's say a KinematicBody2D.
2. Set the collision shape to being 1 direction only.
3. Collide it with something, then you will see that it does not work. Specifically speaking, it acts as if 1 direction were not on at all, so in the case of a 2D rectangle (4 directions), it's 4 directions active instead of simply 1

Minimal reproduction project:
As an example here is a game that has a KinematicBody2D with a collision shape deliberately facing the wrong way. It is rotated to face the right, so it should not logically collide with the box, yet it still does.

MinimalBugKinematicOneWay.zip

[pouleyKetchoupp]

Confirmed still present in 3.4 beta 6.

[enderprism]

Still present in 4.2.1 stable (using CharacterBody2D)