src/vs/workbench/services/workspaces/common/workspaceTrust.ts/WorkspaceTrustTransitionManager/addWorkspaceTrustTransitionParticipant
class WorkspaceTrustTransitionManager:	addWorkspaceTrustTransitionParticipant(participant: IWorkspaceTrustTransitionParticipant): IDisposable {
		const remove = this.participants.push(participant);
		return toDisposable(() => remove());
	}