src/vs/workbench/api/common/extHostFileSystemEventService.ts/ExtHostFileSystemEventService/getOnWillRenameFileEvent
class ExtHostFileSystemEventService:	getOnWillRenameFileEvent(extension: IExtensionDescription): Event<vscode.FileWillRenameEvent> {
		return this._createWillExecuteEvent(extension, this._onWillRenameFile);
	}