Once desugaring is enabled it needs to be enabled for up/down the dependency chain, so enable it in the shared configuration defined by the build convention code. Highlighted a failing test that wasn't being run, so fix that too.
Once desugaring is enabled it needs to be enabled for up/down the dependency chain, so enable it in the shared configuration defined by the build convention code. Highlighted a failing test that wasn't being run, so fix that too.