0a238b3828
- There is no C20, so that stays at C17 - Math between different enum types disallowed, use explicit cast - operator++ removed from volatile types - stream print for wchar_t removed TEST=build Bug: https://github.com/dart-lang/sdk/issues/42074 Change-Id: Ie552b0bf24f8ac8991336c61fd4bd4913da42909 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/393622 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>