Grammar doesn't recognize PHP closure returning references

[alexr00]

From @alkihis on November 6, 2018 21:39

Grammar doesn't recognize closure with ampersand before parentheses.

Steps to Reproduce:

1. Create anonymous function with "&" between "function" keyword and argument list

For copying:

<?php
$a = function &() use ($data) {
    $b = 'hello world';
    return $b;
};

$a();
?>

function is a storage.type.function.php and meta.function.closure.php without the ampersand. With the ampersand it is storage.type.php.

Copied from original issue: microsoft/vscode#62680

[rsese]

Thanks! Reproduced on macOS 10.12.6 with 1.35.0-nightly1.