RFR: 8355003: Implement JEP 515: Ahead-of-Time Method Profiling [v21]

[Igor Veresov]

> Improve warm-up time by making profile data from a previous run of an application instantly available, when the HotSpot Java Virtual Machine starts. Specifically, enhance the [AOT cache](https://openjdk.org/jeps/483) to store method execution profiles from training runs, reducing profiling delays in subsequent production runs.
> 
> More details in the JEP: https://bugs.openjdk.org/browse/JDK-8325147

Igor Veresov has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 84 commits:

 - Merge branch 'master' into pp2
 - Address Ioi's comments
 - Merge branch 'master' into pp2
 - Address Ioi's comments
 - 8356885: Don't emit C1 profiling for casts if TypeProfileCasts is off
   
   Reviewed-by: vlivanov, kvn
 - 8352755: Misconceptions about j.text.DecimalFormat digits during parsing
   
   Reviewed-by: naoto
 - 8356667: GenShen: Eliminate races with ShenandoahFreeSet::available()
   
   Reviewed-by: wkemper
 - 8356819: [macos] MacSign should use "openssl" and "faketime" from Homebrew by default
   
   Reviewed-by: asemenyuk
 - 8356107: [java.lang] Use @requires tag instead of exiting based on os.name or separatorChar property
   
   Reviewed-by: naoto, bpb
 - 8356447: Change default for EagerJVMCI to true
   
   Reviewed-by: yzheng, kvn, never
 - ... and 74 more: https://git.openjdk.org/jdk/compare/5e50a584...d3d51b00

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Changes: https://git.openjdk.org/jdk/pull/24886/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24886&range=20
  Stats: 3332 lines in 59 files changed: 3118 ins; 100 del; 114 mod
  Patch: https://git.openjdk.org/jdk/pull/24886.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24886/head:pull/24886

PR: https://git.openjdk.org/jdk/pull/24886