[code-reflection] RFR: Optimize type construction in OpBuilder [v2]

[Mourad Abbay]

> Further optimize OpBuilder by reducing the overhead of type construction.

Mourad Abbay has updated the pull request incrementally with one additional commit since the last revision:

  Address review comments

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Changes:
  - all: https://git.openjdk.org/babylon/pull/687/files
  - new: https://git.openjdk.org/babylon/pull/687/files/22c273a8..ea08c5ff

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=687&range=01
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=687&range=00-01

  Stats: 9 lines in 1 file changed: 0 ins; 6 del; 3 mod
  Patch: https://git.openjdk.org/babylon/pull/687.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/687/head:pull/687

PR: https://git.openjdk.org/babylon/pull/687