RFR: 8178969: [TESTBUG] Wrong reporting of gc/g1/humongousObjects/TestHeapCounters test.

[Ivan Walulya]

Hi all,

Please review this small fix on the error message. The `getSimpleName()` returns an empty string for anonymous classes, and in this case, the enum values are objects of anonymous classes. 

Thanks
Ivan

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Commit messages:
 - 8178969: [TESTBUG] Wrong reporting of gc/g1/humongousObjects/TestHeapCounters test.

Changes: https://git.openjdk.java.net/jdk/pull/8415/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8415&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8178969
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8415.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8415/head:pull/8415

PR: https://git.openjdk.java.net/jdk/pull/8415