8175191: dead code removal at package com.sun.tools.javac.comp
Reviewed-by: mcimadamore

8056021: checkin for JDK-8027262 breaks Checker Framework
Reviewed-by: jjg, mcimadamore

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com