RFR: 8226362: langtools ProblemList file contains more than 1 entry for a test

[Joel Borggrén-Franck]

Please review this patch that merges problematic lines in the langtools ProblemList.txt

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Commit messages:
 - 8226362: langtools ProblemList file contains more than 1 entry for a test

Changes: https://git.openjdk.java.net/jdk/pull/4301/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4301&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8226362
  Stats: 4 lines in 1 file changed: 0 ins; 2 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4301.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4301/head:pull/4301

PR: https://git.openjdk.java.net/jdk/pull/4301