[lworld] RFR: 8367935: [lworld] Rename ACC_STRICT in the JVM according to strict fields JEP

[Matias Saavedra Silva]

Strict initialization is now indicated with the access flag `ACC_STRICT_INIT` in the JVMS and the VM implementation should follow. `ACC_STRICT` is currently used as a method modifier for strict floating-point semantics so this refactor will help to make both modifiers distinct. VM and Java code has to be updated to use the correct modifier. Verified with tier x-y tests.

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Commit messages:
 - Created different methods for strict_init
 - Merge branch 'lworld' into rename_acc_strict_8367935
 - 8367935: Rename ACC_STRICT in the JVM according to strict fields JEP

Changes: https://git.openjdk.org/valhalla/pull/2025/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=2025&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8367935
  Stats: 45 lines in 11 files changed: 27 ins; 0 del; 18 mod
  Patch: https://git.openjdk.org/valhalla/pull/2025.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2025/head:pull/2025

PR: https://git.openjdk.org/valhalla/pull/2025