Added constructing this instance for captured values of lambda in case of early return

[Damtev]

Description

If non-static lambda is a parameter in an execution but its init section was not analyzed (e.g., an exception was thrown earlier), this captured instance could be constructed incorrectly (with null value) or not be constructed at all. We need to prevent such cases and construct at least an empty object for this instance.

Type of Change

• Minor bug fix (non-breaking small changes)

How Has This Been Tested?

Automated Testing

Specify tests that help to verify the change automatically.

org.utbot.examples.lambda.ThrowingWithLambdaExampleTest#testAnyExample.

Manual Scenario

com.google.common.collect.TreeMultiset.forEachEntry in Contest Estimator.

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