<PackageReference Include="Microsoft.CSharp" Version="4.6.0-preview7.19362.9" />

Microsoft.CSharp.RuntimeBinder.Semantics.SymbolLoader

static class SymbolLoader
namespace Microsoft.CSharp.RuntimeBinder.Semantics { internal static class SymbolLoader { public static AggregateSymbol GetPredefAgg(PredefinedType pt); public static AggregateType GetPredefindType(PredefinedType pt); public static Symbol LookupAggMember(Name name, AggregateSymbol agg, symbmask_t mask); public static bool IsBaseClassOfClass(CType pDerived, CType pBase); public static bool HasIdentityOrImplicitReferenceConversion(CType pSource, CType pDest); public static bool HasBaseConversion(CType pSource, CType pDest); public static bool IsBaseAggregate(AggregateSymbol derived, AggregateSymbol base); } }