RFR: CODETOOLS-7902957: jcstress: L-results are always equal to each other

[Aleksey Shipilev]

Due to a bug in ResultGenerator, all L-results are ignoring the reference in hashCode/equals computation. This means all results that have only reference results are equal to each other, and only the first result would be counted.

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Commit messages:
 - Add tests too
 - Fix reference results

Changes: https://git.openjdk.java.net/jcstress/pull/63/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jcstress&pr=63&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902957
  Stats: 126 lines in 3 files changed: 121 ins; 2 del; 3 mod
  Patch: https://git.openjdk.java.net/jcstress/pull/63.diff
  Fetch: git fetch https://git.openjdk.java.net/jcstress pull/63/head:pull/63

PR: https://git.openjdk.java.net/jcstress/pull/63