instanceof shouldn't be scoped as a type

[alexr00]

Prerequisites

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Description

Steps to Reproduce

1. Create a new empty file.

2. Change language mode to PHP.

3. Enter the following:

   <?php
   if ($x instanceof Y) { }

I would expect instanceof to have the scope keyword.operator.instanceof or keyword.operator.expression.instanceof, but instead it has keyword.operator.type`.

Reproduces how often: always

Versions

Version 0.44.4 of the grammar, from commit 882f6c0

Additional Information

Tested in VS Code version 1.44
Originally from @stakx in microsoft/vscode#94979