Wrap import statements for PyQt support, because sometimes user may have a PyQt support enabled, but use interpreter without PyQt (PY-23680). Also clean exception information before running user's code for Python 2 like we did it in PY-21215

Ruby uses MODULE_DIR as MODULE_DIR macro (iml location), but all other RC uses MODULE_DIR as module dir (special macro)

frequently used inheritor inspection: choose base class ref as element to highlight if class is anonymous

javac ast indices: change condition ordering for a vfs event processing. move faster condition first (IDEA-172399)

- display text for 'Select Module' action
- use editor notifications API to decorate console editor with toolbar
The toolbar was removed after ctrl+F. This change fixes it.

[gui-test] fix radioButton false generation on actionLink; jList and jComboBox fix cellRendererReader; path delimited by slash

IDEA-172200 Decompiler switch-on-enum multiple switches in same class generates wrong cases for all but the first switch-on-enum

Java: Implemented MethodHandle part of inspection "MethodHandle/VarHandle invocation arguments mismatch" (IDEA-171813)

Terminal: don't initialize environment variables as it breaks IDEA-171957, unless it is needed for virtualenv activation as in PY-17816

IDEA-172417 Dataflow analysis: track that loop is visited if and only if array/collection is non-empty