Cesium private/internal APIs leaking out

[jumpinjackie]

The following types have to be currently stubbed in the generated d.ts file, but these types are not even public according to the Cesium API reference, so the plugin must be leaking out functions/methods that use them or unintentionally hoisting said functions/methods to public visibility.

declare module Cesium {

    type BufferUsage = any;

    type VertexBuffer = any;

    type IndexBuffer = any;

    type ShaderProgram = any;

    type ShaderSource = any;

    type IauOrientationParameters = any;

    type HMDVRDevice = any;

    type Rotation = any;

    type Framebuffer = any;

    type ClearCommand = any;

    type VertexArray = any;

    type Texture = any;

    type Pass = any;

    type CubeMap = any;

    type MipmapHint = any;

    type PassState = any;

    type Tile = any;

    type TileReplacementQueue = any;
}