[jfx23u] RFR: 8338886: JavaFX debug builds fail on macOS

[Jay Bhaskar]

A clean backport to jfx23u. The fix is for a build error , failing to build on mac on debug mode.

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Commit messages:
 - Backport 48497168892f5625f77936eccf19e836a6c1971e

Changes: https://git.openjdk.org/jfx23u/pull/16/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx23u&pr=16&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338886
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx23u/pull/16.diff
  Fetch: git fetch https://git.openjdk.org/jfx23u.git pull/16/head:pull/16

PR: https://git.openjdk.org/jfx23u/pull/16