Construct assemble models for classes with val-properties in constructor #1190

[volivan239]

Description

Modified assembleCompositeModel(UtCompositeModel) so that if final fields exist but they all are set by constructor, then we still try to create assemble model (before PR, any final field meant that model can't be assembled).

Fixes #1190

Type of Change

• Minor bug fix (non-breaking small changes)

How Has This Been Tested?

Manual Scenario

Tested on scenario from #1190 -- works as expected.

Checklist (remove irrelevant options):

This is the author self-check list

• The change followed the style guidelines of the UTBot project
• Self-review of the code is passed
• The change contains enough commentaries, particularly in hard-to-understand areas
• New documentation is provided or existed one is altered
• No new warnings
• New tests have been added
• All tests pass locally with my changes