exception

?semanticModel.GetTypeInfo(type)
'semanticModel.GetTypeInfo(type)' threw an exception of type 'System.NullReferenceException'
    Data: {System.Collections.ListDictionaryInternal}
    HResult: -2147467261
    HelpLink: null
    IPForWatsonBuckets: {0}
    InnerException: null
    IsTransient: false
    Message: "Object reference not set to an instance of an object."
    RemoteStackTrace: null
    Source: null
    StackTrace: null
    TargetSite: null
    WatsonBuckets: null
    _HResult: -2147467261
    _className: null
    _data: {System.Collections.ListDictionaryInternal}
    _dynamicMethods: null
    _exceptionMethod: null
    _exceptionMethodString: null
    _helpURL: null
    _innerException: null
    _ipForWatsonBuckets: {0}
    _message: "Object reference not set to an instance of an object."
    _remoteStackIndex: 0
    _remoteStackTraceString: null
    _safeSerializationManager: {System.Runtime.Serialization.SafeSerializationManager}
    _source: null
    _stackTrace: null
    _stackTraceString: null
    _watsonBuckets: null
    _xcode: -532462766
    _xptrs: {0}

type

?type
PredefinedTypeSyntax PredefinedType string
    ContainsAnnotations: false
    ContainsDiagnostics: false
    ContainsDirectives: false
    ContainsSkippedText: false
    CsGreen: PredefinedTypeSyntax PredefinedType string
    EndPosition: 339
    FullSpan: {[333..339)}
    FullWidth: 6
    Green: PredefinedTypeSyntax PredefinedType string
    HasErrors: false
    HasLeadingTrivia: false
    HasStructuredTrivia: false
    HasTrailingTrivia: false
    IsList: false
    IsMissing: false
    IsStructuredTrivia: false
    IsVar: false
    Keyword: SyntaxToken StringKeyword string
    KindText: "PredefinedType"
    Language: "C#"
    Location: SourceLocation(c:\users\jeroen\documents\visual studio 2015\Projects\ConsoleApplication149\ConsoleApplication149\Program.cs@17:34)"string"
    Navigator: {Microsoft.CodeAnalysis.CSharp.Syntax.SyntaxNavigator}
    Parent (Microsoft.CodeAnalysis.SyntaxNode): CastExpressionSyntax CastExpression (string) o
    Parent: CastExpressionSyntax CastExpression (string) o
    ParentOrStructuredTriviaParent (Microsoft.CodeAnalysis.SyntaxNode): CastExpressionSyntax CastExpression (string) o
    ParentOrStructuredTriviaParent: CastExpressionSyntax CastExpression (string) o
    ParentTrivia: SyntaxTrivia None 
    Position: 333
    RawKind: 8621
    SlotCount: 1
    Span: {[333..339)}
    SpanStart: 333
    SyntaxTree (Microsoft.CodeAnalysis.SyntaxNode): {using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication149
{
    class Program
    {
        static void Main(string[] args)
        {
        }

                void Method(object o)
        {
            if (o is string && ((string) o).Length > 1)
            {
            }
        }
    }
}
}
    SyntaxTree: {using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication149
{
    class Program
    {
        static void Main(string[] args)
        {
        }

                void Method(object o)
        {
            if (o is string && ((string) o).Length > 1)
            {
            }
        }
    }
}
}
    SyntaxTreeCore: {using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication149
{
    class Program
    {
        static void Main(string[] args)
        {
        }

                void Method(object o)
        {
            if (o is string && ((string) o).Length > 1)
            {
            }
        }
    }
}
}
    Width: 6
    _parent: CastExpressionSyntax CastExpression (string) o
    _syntaxTree: {using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication149
{
    class Program
    {
        static void Main(string[] args)
        {
        }

                void Method(object o)
        {
            if (o is string && ((string) o).Length > 1)
            {
            }
        }
    }
}
}