RFR: 8282307: Parallel: Incorrect discovery mode in PCReferenceProcessor

Wed Feb 23 15:04:09 UTC 2022

Simple followup of [JDK-8273185](https://bugs.openjdk.java.net/browse/JDK-8273185). This bug should not affect correctness though: treating STW discovery as concurrent discovery.

Test: hotspot_gc

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Commit messages:
 - ps-concurrent-discovery

Changes: https://git.openjdk.java.net/jdk/pull/7590/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7590&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282307
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7590.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7590/head:pull/7590

PR: https://git.openjdk.java.net/jdk/pull/7590