restore that ClassInheritorsSearch returns unique results (IDEA-119628)
extract superclass events posting (IDEA-119248)
Gradle: test data fix
pass idea.config.path and related properties to external build process to ensure that APPLICATION_PLUGINS_DIR path variable is substituted properly (IDEA-118928)
IDEA-88390 Object variables could be casted to any class in Evaluation window

extra fix
added -Dfile.encoding=UTF-8 to tests.gant