new test to highlight an issue
add new annotations
fix KT-4612 properly implement KDoc compiler, added integration test.
Move Gradle Integration test classes to separate module for better re-use
fix test data
use gradle integration tests module
Extract Gradle wrapper to avoid duplicating binary resources
Add message about general gradle failure
refactor tests, use common gradle integration tests module, deduplicate gradle binaries in test data
Merge pull request #402 from nskvortsov/KT-4612

#KT-4612 Fixed