[code-reflection] RFR: [hat] TestMul 1D thread-block and test f16 improved

[Juan Fumero]

TestMul 1D thread-block and test f16 improved

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Commit messages:
 - [hat] TestMul 1D thread-block and test f16 improved

Changes: https://git.openjdk.org/babylon/pull/637/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=637&range=00
  Stats: 21 lines in 3 files changed: 9 ins; 7 del; 5 mod
  Patch: https://git.openjdk.org/babylon/pull/637.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/637/head:pull/637

PR: https://git.openjdk.org/babylon/pull/637