Error thrown when using record struct.

[Gestalte]

I get the following error in the Error List after installing ErrorProne.NET. I believe this is because it can't parse the primary constructor syntax of record structs.

Severity	Code	Project	Description	File	Line	Suppression State
Warning	AD0001	BasketManagement	Analyzer 'ErrorProne.NET.StructAnalyzers.MakeStructReadOnlyAnalyzer' threw an exception of type 'System.InvalidCastException' with message 'Unable to cast object of type 'Microsoft.CodeAnalysis.CSharp.Syntax.ParameterSyntax' to type 'Microsoft.CodeAnalysis.CSharp.Syntax.BasePropertyDeclarationSyntax'.'.
Exception occurred with following context:
Compilation: BasketManagement
ISymbol: ItemGroup (NamedType)

System.InvalidCastException: Unable to cast object of type 'Microsoft.CodeAnalysis.CSharp.Syntax.ParameterSyntax' to type 'Microsoft.CodeAnalysis.CSharp.Syntax.BasePropertyDeclarationSyntax'.
   at ErrorProne.NET.Extensions.SyntaxNodeExtensions.<>c.<MarkedWithReadOnlyModifier>b__4_0(SyntaxReference p) in C:\Sources\GitHub\ErrorProne.NET\src\ErrorProne.NET.Core\SyntaxNodeExtensions.cs:line 50
   at System.Linq.Enumerable.SelectArrayIterator`2.MoveNext()
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at ErrorProne.NET.Extensions.SyntaxNodeExtensions.MarkedWithReadOnlyModifier(IPropertySymbol property) in C:\Sources\GitHub\ErrorProne.NET\src\ErrorProne.NET.Core\SyntaxNodeExtensions.cs:line 48
   at ErrorProne.NET.StructAnalyzers.ReadOnlyAnalyzer.IsReadonly(ISymbol member) in C:\Sources\GitHub\ErrorProne.NET\src\ErrorProne.NET.StructAnalyzers\ReadOnlyAnalyzer.cs:line 61
   at ErrorProne.NET.StructAnalyzers.ReadOnlyAnalyzer.<>c__DisplayClass1_0.<StructCanBeReadOnly>b__4(<>f__AnonymousType0`2 m) in C:\Sources\GitHub\ErrorProne.NET\src\ErrorProne.NET.StructAnalyzers\ReadOnlyAnalyzer.cs:line 48
   at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
   at ErrorProne.NET.StructAnalyzers.ReadOnlyAnalyzer.StructCanBeReadOnly(INamedTypeSymbol namedTypeSymbol, SemanticModel semanticModel) in C:\Sources\GitHub\ErrorProne.NET\src\ErrorProne.NET.StructAnalyzers\ReadOnlyAnalyzer.cs:line 48
   at ErrorProne.NET.StructAnalyzers.MakeStructReadOnlyAnalyzer.AnalyzeStructDeclaration(SymbolAnalysisContext context) in C:\Sources\GitHub\ErrorProne.NET\src\ErrorProne.NET.StructAnalyzers\MakeStructReadOnlyAnalyzer.cs:line 45
   at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteAndCatchIfThrows_NoLock[TArg](DiagnosticAnalyzer analyzer, Action`1 analyze, TArg argument, Nullable`1 info, CancellationToken cancellationToken)

The record struct in question is defined like this:

public sealed record struct ItemGroup(int Amount, PlatonicItem Item);