[jdk17u-dev] RFR: 8293578: Duplicate ldc generated by javac

Fri Sep 30 06:22:59 UTC 2022

Backport for 8293578

Backport for parity with 17.0.6-oracle
Clean backport, tests pass.

Tested by manually running ConstantTypes.java, also ran jtreg tier1, tier2, jck_compiler and jck_runtime - all fine

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Commit messages:
 - Backport 39cd1635bf07f42857e1a704734db66b2c2fa882

Changes: https://git.openjdk.org/jdk17u-dev/pull/758/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=758&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293578
  Stats: 103 lines in 3 files changed: 99 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/758.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/758/head:pull/758

PR: https://git.openjdk.org/jdk17u-dev/pull/758