RFR: 8256718: Obsolete the long term deprecated and aliased Trace flags [v2]

[Harold Seigel]

> Please review this change to obsolete the deprecated and aliased Trace flags.  The now empty aliased_logging_flags support was left in arguments.cpp for use by trace flags that get deprecated and aliased in the future.
> 
> With this change, users will get the following example messages when using these obsolete flags, depending on whether -XX:+... or -XX:-... was specified:
> 
> VM warning: Ignoring option TraceClassPaths; support was removed in 16.0.  Please use -Xlog:class+path=info instead.
> 
> VM warning: Ignoring option TraceClassPaths; support was removed in 16.0.  Please use -Xlog:class+path=off instead.
> 
> The change was tested with tiers1and 2 on Linux, Windows, and MacOS, and tiers 3-5 on Linux x64 and with JCK lang and vm tests.
> 
> Thanks, Harold

Harold Seigel has updated the pull request incrementally with one additional commit since the last revision:

  8256718: Obsolete the long term deprecated and aliased Trace flags

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1525/files
  - new: https://git.openjdk.java.net/jdk/pull/1525/files/9c373c6b..84e421f7

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1525&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1525&range=00-01

  Stats: 206 lines in 3 files changed: 13 ins; 192 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1525.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1525/head:pull/1525

PR: https://git.openjdk.java.net/jdk/pull/1525