[code-reflection] RFR: Optimize type construction in OpBuilder [v3]

[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:

  Encapsulate result type construction inside $op1

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Changes:
  - all: https://git.openjdk.org/babylon/pull/687/files
  - new: https://git.openjdk.org/babylon/pull/687/files/ea08c5ff..0c995bf8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=687&range=02
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=687&range=01-02

  Stats: 14 lines in 1 file changed: 2 ins; 0 del; 12 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