RFR: 8320139: [JVMCI] VmObjectAlloc is not generated by intrinsics methods which allocate objects

[Raphael Mosaner]

This PR exports a pointer to `JvmtiExport::_should_notify_object_alloc` via JVMCI to enable intrinsification of unsafe allocations in accordance to C2.

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Commit messages:
 - [JVMCI] Export pointer to JvmtiExport::_should_notify_object_alloc via CompilerToVM::Data.

Changes: https://git.openjdk.org/jdk/pull/16980/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16980&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8320139
  Stats: 8 lines in 3 files changed: 8 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/16980.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16980/head:pull/16980

PR: https://git.openjdk.org/jdk/pull/16980