> Remove virtual methods from CodeBlob and nmethod to simplify saving/restoring 
> in Leyden AOT cache. It avoids the need to patch hidden VPTR pointer to 
> class's virtual table.
> 
> Added C++ static asserts to make sure no virtual methods are added in a 
> future.
> 
> Fixed/cleaned SA code which process CodeBlob and its subclasses. Use 
> `CodeBlob::_kind` field value to determine the type of blob.
> 
> Tested tier1-5, hs-tier6-rt (for JFR testing), stress, xcomp

Vladimir Kozlov has updated the pull request with a new target base due to a 
merge or a rebase. The incremental webrev excludes the unrelated changes 
brought in by the merge/rebase. The pull request contains eight additional 
commits since the last revision:

 - Update SA based on comments
 - Merge branch 'master' into 8349088
 - Fix Zero VM build
 - Fix Minimal and Zero VM builds once more
 - Fix Minimal and Zero VM builds again
 - Add CodeBlob proxy vtable
 - Fix Zero and Minimal VM builds
 - 8349088: De-virtualize Codeblob and nmethod

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23533/files
  - new: https://git.openjdk.org/jdk/pull/23533/files/b09ddce6..515495b2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23533&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23533&range=05-06

  Stats: 11482 lines in 618 files changed: 7914 ins; 1738 del; 1830 mod
  Patch: https://git.openjdk.org/jdk/pull/23533.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23533/head:pull/23533

PR: https://git.openjdk.org/jdk/pull/23533

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