[lworld] Integrated: 8280514: [API-cleanup] Merge the internal API points Types.is{Primitive/Value}Class with Type.is{Primitive/Value}Class

[Srikanth Adayapalam]

Eliminate redundant internal APIs by merging uses

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Commit messages:
 - 8280514: [API-cleanup] Merge the internal API points Types.is{Primitive/Value}Class with Type.is{Primitive/Value}Class

Changes: https://git.openjdk.java.net/valhalla/pull/614/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=614&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8280514
  Stats: 36 lines in 8 files changed: 0 ins; 8 del; 28 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/614.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/614/head:pull/614

PR: https://git.openjdk.java.net/valhalla/pull/614