RFR: 8286430: make test TEST="gtest:<sometag>" exits with error when it shouldn't [v2]

[Severin Gehwolf]

> `make test TEST="gtest:<sometag"` fails for me with google test version `1.10.0`. It expects `suites` to be present in the google test output whereas the OpenJDK build infra code expects `cases`. I'm not sure when/if that changed, but here is a proposed fix.
> 
> Thoughts?

Severin Gehwolf has updated the pull request incrementally with one additional commit since the last revision:

  Handle both 'cases' and 'suites'

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8605/files
  - new: https://git.openjdk.java.net/jdk/pull/8605/files/54f90f4e..97dccef9

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8605&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8605&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8605.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8605/head:pull/8605

PR: https://git.openjdk.java.net/jdk/pull/8605