RFR: 8308906: Make CIPrintCompilerName a diagnostic flag [v2]

[Ioi Lam]

> Please review a very simple change. This makes it easy to see which JIT compiler is used to compile each method:
> 
> 
> java -XX:+UnlockDiagnosticVMOptions -XX:+PrintCompilation -XX:+CIPrintCompilerName  -jar MyApp.java
> 
> 
> CSR is not needed because this is a diagnostic VM option.

Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:

  Removed duplicated compiler name from -XX:+PrintCompilation

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/14161/files
  - new: https://git.openjdk.org/jdk/pull/14161/files/86fbe398..7a4b8fcf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14161&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14161&range=00-01

  Stats: 4 lines in 1 file changed: 0 ins; 4 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/14161.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14161/head:pull/14161

PR: https://git.openjdk.org/jdk/pull/14161