7140924: SIGSEGV in compiled code for sun.awt.X11.XDecoratedPeer.updateMinSizeHints Summary: Use unknown_obj instead of empty_map for NULL or Constant Pool object constants in bytecode Escape Analyzer. Reviewed-by: iveresov, never

^build/
^dist/
^drop/
^drop_included/
^webrev/
/nbproject/private/
^.hgtip