Darwin specific IPC encoding primitives are implemented in WebKit/Shared but used in WebKit/Platform/IPC Creates a layering violation, makes it harder to compile IPC code for c++ unit testing.
<rdar://problem/98551932>
Pull request: https://github.com/WebKit/WebKit/pull/3260
Committed 253422@main (d509234209c0): <https://commits.webkit.org/253422@main> Reviewed commits have been landed. Closing PR #3260 and removing active labels.