Error-prone: @SuppressWarnings support for Refaster templates

[knutwannheden]

For a given Refaster template it would be nice if client code could use an @SuppressWarnings annotation to suppress a particular match from being reported. I suppose the simplest solution would be to use the Refaster template's fully qualified class name as the ID of the warning.

[Stephan202]

A (not super nice) workaround is to add a comment "inside" the expression that would otherwise be transformed. Any comment will do (e.g. /* No Refaster */), but this doesn't work for e.g. constants :)

[knutwannheden]

@Stephan202 Thanks for the tip.

Similarly I would also have hoped that I can use -Xep:my.refaster.Template:OFF to disable a given Refaster template. But this doesn't appear to work, AFAICT.

[rickie]

@cushon do you think that this issue is resolved with PR #1517?

[cushon]

https://github.com/google/error-prone/commit/ca6b5300852f3e67e8938afffe01863825a3880d