[jdk21u] RFR: 8312440: assert(cast != nullptr) failed: must have added a cast to pin the node [v2]

[Goetz Lindenmaier]

> I backport this for parity with 17.0.10-oracle.
> 
> After it being backported to 17.0.10-oracle,
> the risk of bringing it to 21 should be acceptable as this will have much less exposure.
> 
> Test passes on top of 8308103. Will run it through SAPs testing.

Goetz Lindenmaier 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 three additional commits since the last revision:

 - Merge branch 'master' into GoeLin-backport-01e135c9
 - Backport 01e135c91018a41800c2df534b1d6dbd396adbf4
 - Backport c6ab9c2905203e1ec897b3404f9179ff975d0054

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

Changes:
  - all: https://git.openjdk.org/jdk21u/pull/200/files
  - new: https://git.openjdk.org/jdk21u/pull/200/files/c68f163d..ef91bf40

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u&pr=200&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u&pr=200&range=00-01

  Stats: 1502 lines in 30 files changed: 1119 ins; 329 del; 54 mod
  Patch: https://git.openjdk.org/jdk21u/pull/200.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/200/head:pull/200

PR: https://git.openjdk.org/jdk21u/pull/200