Verifies that enums in each of the platform-specific embedders, and the embedder API remain consistent with their API in dart:ui.
This tool is run as part of testing/run_tests.sh.
To run the tool, invoke with the path of the Flutter engine repo as the first argument.
../../../out/host_debug_unopt/dart-sdk/bin/dart \
--disable-dart-dev \
test/apicheck_test.dart \
"$(dirname $(dirname $PWD))"