src/vs/workbench/services/workingCopy/common/workingCopyFileService.ts/WorkingCopyFileService/addFileOperationParticipant
class WorkingCopyFileService:	addFileOperationParticipant(participant: IWorkingCopyFileOperationParticipant): IDisposable {
		return this.fileOperationParticipants.addFileOperationParticipant(participant);
	}