src/vs/workbench/api/common/extHostFileSystemEventService.ts/ExtHostFileSystemEventService/createFileSystemWatcher
class ExtHostFileSystemEventService:	createFileSystemWatcher(workspace: IExtHostWorkspace, extension: IExtensionDescription, globPattern: vscode.GlobPattern, ignoreCreateEvents?: boolean, ignoreChangeEvents?: boolean, ignoreDeleteEvents?: boolean): vscode.FileSystemWatcher {
		return new FileSystemWatcher(this._mainContext, workspace, extension, this._onFileSystemEvent.event, typeConverter.GlobPattern.from(globPattern), ignoreCreateEvents, ignoreChangeEvents, ignoreDeleteEvents);
	}