Create [WarningAttribute] and [ErrorAttribute] that triggers compiler warnings/errors the way [ObsoleteAttribute] does. #156
Description
FEATUREREQUEST
COMPILER
Add a [WarningAttribute] or [CompilerWarningAttribute] and [CompilerErrorAttribute] that works the same way as [ObsoleteAttribute]; it would trigger a compiler warning or error with a customized message. Ideally it would not be sealed. You could do things like:
[Warning("This class uses PInvoke and will prevent ARM compatibility.")]
[Experimental("This method has not completed Quality Assurance, and should not be used in a production environment.")]
This feature would be particularly useful for component creators.
This would be the bees' knees.