RFR: 8342772: Assert in LateInlineMHCallGenerator::do_late_inline_check

[Damon Fenacci]

# Issue
The assertion
https://github.com/openjdk/jdk/blob/1c16d8a900928ebfa5e2343cf33312539509e815/src/hotspot/share/opto/callGenerator.cpp#L421
in `LateInlineMHCallGenerator::do_late_inline_check` fails while running a 24h-long Renaissance benchmark test.

# Cause
The assert failure is due to both `!cg->is_late_inline()` and `cg->is_mh_late_inline()` being false because the CallGenerator `cg` is of type `LateInlineVirtualCallGenerator`. `cg` is created just above by calling `for_method_handle_inline`. The only way for `cg` to be of type `LateInlineVirtualCallGenerator` is that `for_method_handle_inline` (which finds out that the intrinsic id is `vmIntrinsics::_linkToInterface`) calls `optimize_virtual_call`, which apparently cannot devirtualize the call, and then calls `call_generator` and this creates and returns a `LateInlineVirtualCallGenerator` (at the end of the method).

# Fix
There seem to be no apparent reason why the CallGenerator returned by `for_method_handle_inline` couldn't be of type `LateInlineVirtualCallGenerator`. So the sensible fix is to relax the assert to accommodate this type of call generator.

# Testing
Tier 1-3+
Failing test before and after.

Unfortunately it has proven impractical to create a specific test that consistently (or even only intermittently) reproduces the  issue.

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

Commit messages:
 - JDK-8342772: update copyright year
 - Merge branch 'master' into JDK-8342772
 - JDK-8342772: new line
 - JDK-8342772: Assert in LateInlineMHCallGenerator::do_late_inline_check

Changes: https://git.openjdk.org/jdk/pull/28793/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28793&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342772
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/28793.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28793/head:pull/28793

PR: https://git.openjdk.org/jdk/pull/28793