RFR: 8253913: unify gtest test names [v2]

[Igor Ignatyev]

> Hi all,
> 
> could you please review this small and trivial patch that unifies the names of hotspot gtests? in some cases, "_test"
> is added to gtest names, in others it isn't. given some tests specify "test" in their names, so we get "test_test" like
> in `UninitializedDoubleElementWorkerDataArrayTest.sum_test_test_vm`. the patch removes `_test` from the suffixes added
> by `TEST*` macros.  testing: ✅ `make test TEST=gtest` on macosx-x64
> ✅ `test/hotspot/jtreg/gtest/` on {linux,windows,macosx}-x64

Igor Ignatyev has updated the pull request incrementally with one additional commit since the last revision:

  adjust test class names in LogStream's friends

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/475/files
  - new: https://git.openjdk.java.net/jdk/pull/475/files/d0a45837..5d7e7f50

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=475&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=475&range=00-01

  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/475.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/475/head:pull/475

PR: https://git.openjdk.java.net/jdk/pull/475