Trivial fixes to ProblemList a couple of tests: [JDK-8304172](https://bugs.openjdk.org/browse/JDK-8304172) ProblemList serviceability/sa/UniqueVtableTest.java [JDK-8304175](https://bugs.openjdk.org/browse/JDK-8304175) ProblemList compiler/vectorapi/VectorLogicalOpIdentityTest.java on 2 platforms
------------- Commit messages: - 8304175: ProblemList compiler/vectorapi/VectorLogicalOpIdentityTest.java on 2 platforms - 8304172: ProblemList serviceability/sa/UniqueVtableTest.java Changes: https://git.openjdk.org/jdk/pull/13029/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13029&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8304172 Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/13029.diff Fetch: git fetch https://git.openjdk.org/jdk pull/13029/head:pull/13029 PR: https://git.openjdk.org/jdk/pull/13029