SwiftDocCDiagnosticFormattingConsumerProtocolDiagnosticFormattingConsumerA type that can format received diagnostics in way that’s suitable for writing to a destination such as a file or TextOutputStream.protocol DiagnosticFormattingConsumer : DiagnosticConsumerTopicsInstance Propertiesvar formattingOptions: DiagnosticFormattingOptionsOptions for how problems should be formatted if written to output.