message: Fix the DisplayObject type declaration
diff: @@ -101,11 +101,22 @@ declare namespace PIXI {
  export interface DisplayObject {
  on(event: interaction.InteractionEventTypes, fn: (event: interaction.InteractionEvent) => void, context?: any): this;
  + //tslint:disable-next-line:ban-types forbidden-types
  + on(event: string | symbol, fn: Function, context?: any): this;
  once(event: interaction.InteractionEventTypes, fn: (event: interaction.InteractionEvent) => void, context?: any): this;
  + //tslint:disable-next-line:ban-types forbidden-types
  + once(event: string | symbol, fn: Function, context?: any): this;
  removeListener(event: interaction.InteractionEventTypes, fn?: (event: interaction.InteractionEvent) => void, context?: any): this;
  + //tslint:disable-next-line:ban-types forbidden-types
  + removeListener(event: string | symbol, fn?: Function, context?: any): this;
  removeAllListeners(event?: interaction.InteractionEventTypes): this;
  + removeAllListeners(event?: string | symbol): this;
  off(event: interaction.InteractionEventTypes, fn?: (event: interaction.InteractionEvent) => void, context?: any): this;
  + //tslint:disable-next-line:ban-types forbidden-types
  + off(event: string | symbol, fn?: Function, context?: any): this;
  addListener(event: interaction.InteractionEventTypes, fn: (event: interaction.InteractionEvent) => void, context?: any): this;
  + //tslint:disable-next-line:ban-types forbidden-types
  + addListener(event: string | symbol, fn: Function, context?: any): this;
  }
  export interface Container {
  