Core: DummyDll: Fix valuetype not being set on type references

Author: SamboyCoding

Cpp2IL.Core/Model/Contexts/GenericInstanceTypeAnalysisContext.cs

@@ -22,6 +22,8 @@ public class GenericInstanceTypeAnalysisContext : ReferencedTypeAnalysisContext
 
     public sealed override int GenericParameterCount => GenericArguments.Count;
 
+    public sealed override bool IsValueType => GenericType.IsValueType; //We don't set a definition so the default implementation cannot determine if we're a value type or not. 
+
     public GenericInstanceTypeAnalysisContext(Il2CppType rawType, AssemblyAnalysisContext referencedFrom) : base(referencedFrom)
     {
         //Generic type has to be a type definition

Cpp2IL.Core/Model/Contexts/TypeAnalysisContext.cs

@@ -232,7 +232,7 @@ public static ITypeInfoProvider GetSndnProviderForType(ApplicationAnalysisContex
     public string RewrittenTypeName => Name;
     public string TypeNamespace => Namespace;
     public virtual bool IsGenericInstance => false;
-    public bool IsValueType => Definition?.IsValueType ?? BaseType is { Namespace: "System", Name: "ValueType" };
+    public virtual bool IsValueType => Definition?.IsValueType ?? BaseType is { Namespace: "System", Name: "ValueType" };
     public bool IsEnumType => Definition?.IsEnumType ?? BaseType is { Namespace: "System", Name: "Enum" };
     public bool IsInterface => Definition?.IsInterface ?? ((TypeAttributes & TypeAttributes.Interface) != default);
     public IEnumerable<ITypeInfoProvider> GenericArgumentInfoProviders => Array.Empty<ITypeInfoProvider>();

Cpp2IL.Core/Model/Contexts/WrappedTypeAnalysisContext.cs

@@ -12,6 +12,8 @@ public abstract class WrappedTypeAnalysisContext : ReferencedTypeAnalysisContext
 
     public override string DefaultNs => ElementType.Namespace;
 
+    public override bool IsValueType => ElementType.IsValueType; //We don't set a definition so the default implementation cannot determine if we're a value type or not.
+
     protected WrappedTypeAnalysisContext(TypeAnalysisContext elementType, AssemblyAnalysisContext referencedFrom) : base(referencedFrom)
     {
         ElementType = elementType;