https://github.com/JetBrains/intellij-community/pull/149
New decompiler API (compatibility restored)
EA-46543 (stub reuse avoided)
Merge remote-tracking branch 'origin/master'

Conflicts:
	python/src/com/jetbrains/python/psi/PyUtil.java
faster getOriginalElement for source methods
debug logging for IDEA-120339 Type Hierarchy works only when the cursor is over a class name
method reference: ref qualified isExact fixed (IDEA-120370)
schedule cache update in dumb mode when synchronizing roots or having large vfs change, to avoid stalls upon collecting files to update that can build vfs / update filetypr / filename indices (IDEA-109525)
Merge remote-tracking branch 'origin/master'