Language Server crashes when class Import keyword is present but empty

[isc-bsaviano]

When you are editing a class definition and want to add an import, typing Import causes the LS to crash. If an Import statement already exists or is copied in, the class parses fine. The LS on crashes when the line only contains Import.

For example, a class in this state would cause a crash:

Import

Class User.abc
{

Parameter a;

}

I rolled back to LS 1.2.9 and still observed this behavior.

Originally reported here