RFR (smallish?) 8061611: Remove deprecated command line flags

[Derek White]

Hi Team,

First review request. Please let me know if I've forgotten something or 
have gone completely off the rails.

The main point of this bug is to remove deprecated -XX options which are 
alias for other options.

The only complicated part is that one case, /CMSParPromoteBlocksToClaim/ 
was not a true alias for /OldPLABSize/ but a parallel option with 
different defaults that were synchronized in ergo processing. This fix 
removes the /CMSParPromoteBlocksToClaim /variable but preserves using 
different defaults in the CMS case.

Also in this fix I added warning messages to several remaining 
undocumented command line options aliases. This should ease removal of 
these options in the future

CMSMarkStackSize ==> MarkStackSize        (MarkStackSize not documented either, but came in jdk6)
G1MarkStackSize  ==> MarkStackSize
CMSMarkStackSizeMax ==> MarkStackSizeMax  (MarkStackSizeMax not documented either)
ParallelMarkingThreads =>  ConcGCThreads  (ConcGCThreads came in jdk6)
ParallelCMSThreads     ==> ConcGCThread


Thanks,
  - Derek

*Webrev*: http://cr.openjdk.java.net/~drwhite/8061611/webrev.00/

*Bug*: https://bugs.openjdk.java.net/browse/JDK-8061611

*Testing*:
jprt:
     Saw 1-2 intermittent failures that went away on retesting - hangs 
and timeouts.

refworkload:
     no differences

jtreg: Saw a few unexplained results. Not sure if typical or not:


            Execution failed: `main' threw exception:
            java.lang.Exception: jmap -heap exited with error code: 1

      * gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java
        <http://oklahoma.us.oracle.com/net/bussund0416//export/users/drwhite/hs-gc-mine/hotspot/test/JTwork/gc/metaspace/CompressedClassSpaceSizeInJmapHeap.jtr>:
        Checks that jmap -heap contains the flag CompressedClassSpaceSize


            Program
            `/export/users/drwhite/test-builds/j2sdk-image.11.17.2014/bin/java'
            interrupted! (timed out?)

      * closed/runtime/AppCDS/SharedArchiveConsistency.java
        <http://oklahoma.us.oracle.com/net/bussund0416//export/users/drwhite/hs-gc-mine/hotspot/test/JTwork/closed/runtime/AppCDS/SharedArchiveConsistency.jtr>:
        SharedArchiveConsistency

    Plus a bunch of tests that are labelled "ignored".


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