[Rider] Some warnings do not show any text in Solution Wide analysis

[kawazoe]

I noticed that the "Convert to async call" and "Add Async suffix" quickfixes comes with warnings that appears with an empty text in the Solution Wide analysis pane.

I've only tested in Rider 2019.2, but it might affect Resharper as well.

[FstTesla]

I confirm that this affects ReSharper too.