[Fact]
        public void Test()
        {
            var source = @"
void F<T>(T t)
{
    var f = (ref T x) => 0;
}
";
            var compilation = CreateCompilation(source, options: TestOptions.DebugDll);
            var tree = compilation.SyntaxTrees[0];
            var identifier = tree.GetRoot().DescendantNodes().OfType<IdentifierNameSyntax>().First(id => id.Identifier.Text == "var");
            var model = compilation.GetSemanticModel(tree);
            var anonymousType = model.GetSymbolInfo(identifier).Symbol.GetSymbol<TypeSymbol>();

            model.GetOperation(identifier);
        }

Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Binder.BindSimpleProgram(Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax compilationUnit, Microsoft.CodeAnalysis.CSharp.BindingDiagnosticBag diagnostics) Line 3436	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Binder.BindMethodBody(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode syntax, Microsoft.CodeAnalysis.CSharp.BindingDiagnosticBag diagnostics, bool includesFieldInitializers) Line 3427	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MemberSemanticModel.IncrementalBinder.BindMethodBody(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode node, Microsoft.CodeAnalysis.CSharp.BindingDiagnosticBag diagnostics, bool includeInitializersInBody) Line 2474	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MethodBodySemanticModel.Bind(Microsoft.CodeAnalysis.CSharp.Binder binder, Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode node, Microsoft.CodeAnalysis.CSharp.BindingDiagnosticBag diagnostics) Line 106	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MemberSemanticModel.GetBoundNodes(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode node) Line 2113	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MemberSemanticModel.GetUpperBoundNode(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode node, bool promoteToBindable) Line 519	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MemberSemanticModel.GetBoundRoot() Line 501	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MemberSemanticModel.GetRootOperation() Line 1215	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.MemberSemanticModel.GetOperationWorker(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode node, System.Threading.CancellationToken cancellationToken) Line 1153	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.SyntaxTreeSemanticModel.GetOperationWorker(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode node, System.Threading.CancellationToken cancellationToken) Line 194	C#
 	Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSemanticModel.GetOperationCore(Microsoft.CodeAnalysis.SyntaxNode node, System.Threading.CancellationToken cancellationToken) Line 478	C#
 	Microsoft.CodeAnalysis.dll!Microsoft.CodeAnalysis.SemanticModel.GetOperation(Microsoft.CodeAnalysis.SyntaxNode node, System.Threading.CancellationToken cancellationToken) Line 80	C#
>	Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests.dll!Microsoft.CodeAnalysis.CSharp.UnitTests.Symbols.SymbolExtensionTests.Test() Line 113	C#