Fixing the Debug build of WebKit. Test: Build JavaFX using `-PCOMPILE_WEBKIT=true -PCONF=DebugNative` and test using a simple HelloWebView app.
------------- Commit messages: - 8262276: Debug build of WebKit fails Changes: https://git.openjdk.java.net/jfx/pull/417/files Webrev: https://webrevs.openjdk.java.net/?repo=jfx&pr=417&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8262276 Stats: 59 lines in 7 files changed: 39 ins; 16 del; 4 mod Patch: https://git.openjdk.java.net/jfx/pull/417.diff Fetch: git fetch https://git.openjdk.java.net/jfx pull/417/head:pull/417 PR: https://git.openjdk.java.net/jfx/pull/417
