RFR: 8277573: VmObjectAlloc is not generated by intrinsics methods which allocate objects [v2]

[Leonid Mesnik]

> Updated VM internal object allocation C2 intrinsic to post jvmti events when needed.

Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision:

  fixed after Sergey's comments

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Changes:
  - all: https://git.openjdk.org/jdk/pull/13312/files
  - new: https://git.openjdk.org/jdk/pull/13312/files/9d13e058..82aa5d93

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13312&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13312&range=00-01

  Stats: 23 lines in 9 files changed: 0 ins; 4 del; 19 mod
  Patch: https://git.openjdk.org/jdk/pull/13312.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13312/head:pull/13312

PR: https://git.openjdk.org/jdk/pull/13312