No error for referencing non-existent class's static variable

[php4fan]

In this code: the class \vBP_Engine does not exist. I meant to write \vBP_Engine but I forgot the back slash.

However, the IDE didn't catch it and showed to error or warning.

Some more tests:

It seems to happen systematically when referencing static variables in a class.

[jakubmisek]

That's weird, we should underline any unknown class name,

We only don't underline when indexing is in progress, or when the class was already underlined in the function previously.

[jakubmisek]

We also don't underline unknown classes when indexing has not yet finished.

[php4fan]

Does this not reproduce for you?

<?php

echo NonExistentClass::$foo;

[jakubmisek]

@php4fan I see, it does! thank you

[jakubmisek]

Fixed