Disable treat_warnings_as_errors on MSVC builds Chromium rolls into ANGLE are currently blocked due to: error C2220: the following warning is treated as an error warning C4068: unknown pragma 'GCC' MSVC unsupported by Chromium since 2020: https://groups.google.com/a/chromium.org/g/chromium-dev/c/fuVUxe1q6EA V8 dropped MSVC support in 2024: https://groups.google.com/g/v8-users/c/J8Q6VrX9e4M/ ANGLE currently does compile-only MSVC builds. This CL further relaxes MSVC support by ignoring warnings. Bug: angleproject:376074941 Change-Id: Id6327617fb95a4b19f64cfda13dbd68733c34aa5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5973134 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Roman Lavrov <romanl@google.com>