Inherited 'operator dot' is not callable when declared in separate file

[frodiwe]

Hi!

I run upon a case where you are not able to call inherited operator . function because of field not found in (30503).
I have added test case for the issue in this PR.

The case seems to be like this:

File_A: declare base class (A) with operator .
File_B: declare derived class B from class A
File_C: require File_B, declare variable of type class B and call operator . (it should be there because class B is derived from class A)

It is fixable by requiring File_A in File_C (along with File_B) but I suppose it is not how it was intended to work.