[jdk21u-dev] RFR: 8356328: Some C2 IR nodes miss size_of() function [v2]

[Kuai Wei]

> Hi all,
> 
> This pull request contains a backport of commit [9927ec0b](https://github.com/openjdk/jdk/commit/9927ec0b91775db342b2bbc1937253325c367a19) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Kuai Wei on 18 May 2025 and was reviewed by Tobias Hartmann and Christian Hagedorn.
> 
> Thanks!

Kuai Wei has updated the pull request incrementally with one additional commit since the last revision:

  Trigger workflow

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Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/1814/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/1814/files/ce2541ab..e608088c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1814&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1814&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1814.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1814/head:pull/1814

PR: https://git.openjdk.org/jdk21u-dev/pull/1814