public static DiagnosticBuilderAssertions Should(this DiagnosticBuilder.DiagnosticBuilderDelegate diagnosticBuilder) => new(diagnosticBuilder);
public static void Write(this IDiagnosticWriter diagnosticWriter, IPositionable positionable, DiagnosticBuilder.DiagnosticBuilderDelegate buildDiagnosticFunc) => diagnosticWriter.Write(buildDiagnosticFunc(DiagnosticBuilder.ForPosition(positionable)));