[jfx26u] RFR: 8376282: [linux, macos] JavaFX fails to build WebKit in DebugNative

[Jay Bhaskar]

A clean backport for jfx26u. The patch fixes build issue in debug mode after webkit upgrade 623.1. The test fails without fix and passes with fix.

-------------

Commit messages:
 - Backport 0f091426eb44e7a11bf6c8d15a2359d8d7760da8

Changes: https://git.openjdk.org/jfx26u/pull/5/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx26u&pr=5&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376282
  Stats: 14 lines in 2 files changed: 8 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jfx26u/pull/5.diff
  Fetch: git fetch https://git.openjdk.org/jfx26u.git pull/5/head:pull/5

PR: https://git.openjdk.org/jfx26u/pull/5