unnecessary this: ignore cases with illegal self refs (IDEA-126798)
isEmpty() for any collection
javafx: disable intention to inject languages when no languages are available
javaFX: support event handlers without underlying fields (IDEA-126754)
scene builder: hide parsing errors from scene builder from user
testdata for IDEA-126809
IDEA-73140 XDebugger: Debugger always switches you to "Debugger" tab when first breakpoint is hit
tests under linux fixed
IDEA-126825 Debugger doesn't show execution point