[jdk25u-dev] RFR: 8361492: [IR Framework] Has too restrictive regex for load and store

[Aleksey Shipilev]

Unblocks [JDK-8370405](https://bugs.openjdk.org/browse/JDK)[JDK-8370405](https://bugs.openjdk.org/browse/JDK-8370405) backport. The context is a bit different near `(STORE|LOAD)_OF_CLASS_POSTFIX` removal, so I had to remove those fields manually.

Additional testing:
 - [x] Linux x86_64 server fastdebug, `compiler/` (includes all known IR tests)

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Commit messages:
 - Backport ebb1095805579f8f32a81bb350198fa1b7add9eb

Changes: https://git.openjdk.org/jdk25u-dev/pull/9/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u-dev&pr=9&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8361492
  Stats: 253 lines in 2 files changed: 249 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jdk25u-dev/pull/9.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u-dev.git pull/9/head:pull/9

PR: https://git.openjdk.org/jdk25u-dev/pull/9