RFR: 8254882: ZGC: Use static_assert instead of guarantee

[Per Liden]

The ZMarkStackAllocator uses guarantee(), which can be turned into static_assert(). I took the opportunity to also
change three exsisting uses of STATIC_ASSERT to static_assert, and adjust some neighbouring "typedefs" to "using".

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Commit messages:
 - 8254882: ZGC: Use static_assert instead of guarantee

Changes: https://git.openjdk.java.net/jdk/pull/696/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=696&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8254882
  Stats: 13 lines in 3 files changed: 3 ins; 3 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/696.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/696/head:pull/696

PR: https://git.openjdk.java.net/jdk/pull/696