Description

If package in which class was put doesn't match its directory, we should use packageName of containing PsiFile as packageName for class (and not the directory of containing file).

Fixes #1081

Type of Change

• Bug fix (non-breaking change which fixes an issue)

Manual Scenario

Checked on scenario from #1081 (both when we launch action on misplaced class and when we launch action on method in other class where misplaced class is used) -- tests are generated correctly (although, IDEA can't always correctly handle wrong package).

Checklist (remove irrelevant options):

• 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