8183148: cleanup ModuleSymbol.getSimpleName
Reviewed-by: jjg

8173117: Compilation significantly slower after JDK-8169197
Summary: Only using recovery search when an error is inevitable.
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