Intellisense working incorrectly in PHPStorm 2018.1 on macOS

I have just updated to PHPStorm 2018.1 because I love using the latest version of products. Unfortunately, directly after updating I was unpleasantly surprised the intellisense has changed.

Prior to the update (I had been using PHPStorm 2017), if I had declared a variable $service, then at later part of the code I could have simply started writing ser... and the variable $service would have automatically been suggested. In order to have the variable suggested now, I need to use the dollar symbol.

I mean, this wouldn't really be that much of an issue, I can probably get used to writing the dollar symbol, however, PHPStorm now does not suggest global constants either.

Has this been an intended change? If so, can it be reverted to the previous behaviour? If not, a hotfix would be greatly appreciated. :)