[jdk11u-dev] RFR: 8277441: CompileQueue::add fails with assert(_last->next() == __null) failed: not last

[Goetz Lindenmaier]

I backport this for parity with 11.0.15-oracle.

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Commit messages:
 - Backport 90f96fb4db174e50cc2510f292fe69fc995add26

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/756/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=756&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8277441
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/756.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/756/head:pull/756

PR: https://git.openjdk.java.net/jdk11u-dev/pull/756