RFR: 8346264: "Total compile time" counter should include time spent in failing/bailout compiles [v2]

[Aleksey Shipilev]

> Noticed this when looking through JMH compiler profiler results.
> 
> Current `CompilerBroker` counters that are fed into `CompilationMXBean.getTotalCompilationTime()` and JFR `CompilerStatistics` only records the time for successful compilations. If we take a while in compilation and then fail/bail, that time would not be accounted for.
> 
> While this seems to be a long-standing behavior, there are problems with this:
>  1. This is not what "total" means.
>  2. This gives us a blind spot in measuring time taken in failing/bailing compilations.
>  3. It does not match well the Javadoc for `CompilationMXBean.getTotalCompilationTime()`: "Returns the approximate accumulated elapsed time (in milliseconds) spent in compilation." -- since the time spent in failing/bailing compilation is still time spent in compilation.
> 
> Additional testing:
>  - [x] Linux x86_64 server release, `jdk/jfr java/lang/management`

Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:

  Update comment

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22760/files
  - new: https://git.openjdk.org/jdk/pull/22760/files/0873477b..67a11988

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22760&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22760&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/22760.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22760/head:pull/22760

PR: https://git.openjdk.org/jdk/pull/22760