array_merge on null in Indexer.php:152

[do-io]

Mac: 10.13.3
VS Code: 1.20.0 (I saw this just before the update on VSCode 1.19.x)
PHP Intellisense: 2.2.6
NPM: 5.6.0

In the Console for the Dev tools I see this exception:

/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/workbench.main.js:253 [Extension Host] ErrorException: array_merge(): Argument #2 is not an array in /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/felixfbecker/language-server/src/Indexer.php:152
Stack trace:
#0 [internal function]: {closure}(2, 'array_merge(): ...', '/Users/do/.vsco...', 152, Array)
#1 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/felixfbecker/language-server/src/Indexer.php(152): array_merge(Array, NULL)
#2 [internal function]: LanguageServer\Indexer->LanguageServer\{closure}()
#3 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/sabre/event/lib/coroutine.php(70): Generator->send(NULL)
#4 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/sabre/event/lib/Promise.php(242): Sabre\Event\{closure}(NULL)
#5 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/sabre/event/lib/Loop/Loop.php(261): Sabre\Event\Promise->Sabre\Event\{closure}()
#6 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/sabre/event/lib/Loop/Loop.php(215): Sabre\Event\Loop\Loop->runNextTicks()
#7 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/sabre/event/lib/Loop/Loop.php(194): Sabre\Event\Loop\Loop->tick(true)
#8 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/sabre/event/lib/Loop/functions.php(122): Sabre\Event\Loop\Loop->run()
#9 /Users/do/.vscode/extensions/felixfbecker.php-intellisense-2.2.6/vendor/felixfbecker/language-server/bin/php-language-server.php(50): Sabre\Event\Loop\run()
#10 {main}

Let me know if you require more information and where it might be found... Thank you.

[netjan]

Simple patch:
patch.txt

[felixfbecker]

@janekcz69 can you submit a pull request?

[netjan]

Yes, I try but
Authentication failed. You may not have permission to access the repository or the repository may have been archived. Open options and verify that you're signed in with an account that has permission to access this repository.