CLR: Managed code called FailFast, saying "System.InvalidOperationException: Unexpected value 'TypeExpression expression of MyStruct<MyStruct<A, B>, B> type' of type 'System.String'
   at Microsoft.CodeAnalysis.CSharp.Binder.GetValEscape(BoundExpression expr, UInt32 scopeOfTheContainingExpression)
   at Microsoft.CodeAnalysis.CSharp.Binder.CheckInvocationArgMixing(SyntaxNode syntax, Symbol symbol, BoundExpression receiverOpt, ImmutableArray`1 parameters, ImmutableArray`1 argsOpt, ImmutableArray`1 argRefKindsOpt, ImmutableArray`1 argsToParamsOpt, UInt32 scopeOfTheContainingExpression, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindInvocationExpressionContinued(SyntaxNode node, SyntaxNode expression, String methodName, OverloadResolutionResult`1 result, AnalyzedArguments analyzedArguments, MethodGroup methodGroup, NamedTypeSymbol delegateTypeOpt, DiagnosticBag diagnostics, CSharpSyntaxNode queryClause)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindMethodGroupInvocation(SyntaxNode syntax, SyntaxNode expression, String methodName, BoundMethodGroup methodGroup, AnalyzedArguments analyzedArguments, DiagnosticBag diagnostics, CSharpSyntaxNode queryClause, Boolean allowUnexpandedForm)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindInvocationExpression(SyntaxNode node, SyntaxNode expression, String methodName, BoundExpression boundExpression, AnalyzedArguments analyzedArguments, DiagnosticBag diagnostics, CSharpSyntaxNode queryClause, Boolean allowUnexpandedForm)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindInvocationExpression(InvocationExpressionSyntax node, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindExpressionInternal(ExpressionSyntax node, DiagnosticBag diagnostics, Boolean invoked, Boolean indexed)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindExpression(ExpressionSyntax node, DiagnosticBag diagnostics, Boolean invoked, Boolean indexed)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindExpressionStatement(CSharpSyntaxNode node, ExpressionSyntax syntax, Boolean allowsAnyExpression, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindExpressionStatement(ExpressionStatementSyntax node, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindStatement(StatementSyntax node, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Binder.BindBlockParts(BlockSyntax node, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.MethodCompiler.BindMethodBody(MethodSymbol method, TypeCompilationState compilationState, DiagnosticBag diagnostics, ImportChain& importChain, Boolean& originalBodyNested)
   at Microsoft.CodeAnalysis.CSharp.MethodCompiler.CompileMethod(MethodSymbol methodSymbol, Int32 methodOrdinal, ProcessedFieldInitializers& processedInitializers, SynthesizedSubmissionFields previousSubmissionFields, TypeCompilationState compilationState)
   at Microsoft.CodeAnalysis.CSharp.MethodCompiler.CompileNamedType(NamedTypeSymbol containingType)
   at Microsoft.CodeAnalysis.CSharp.MethodCompiler.<>c__DisplayClass21_0.<CompileNamedTypeAsTask>b__0()"