Fix incorrect results in TypeExposedByAnalyzer and TypeUsedByAnalyzer

ILSpy/Analyzers/Builtin/TypeExposedByAnalyzer.cs

@@ -57,7 +57,7 @@ namespace ICSharpCode.ILSpy.Analyzers.Builtin
 			if (!context.Language.ShowMember(type))
 				yield break;
 
-			var visitor = new TypeDefinitionUsedVisitor(analyzedType);
+			var visitor = new TypeDefinitionUsedVisitor(analyzedType, true);
 
 			foreach (IField field in type.Fields) {
 				if (TypeIsExposedBy(visitor, field))
@@ -135,7 +135,7 @@ namespace ICSharpCode.ILSpy.Analyzers.Builtin
 				p.Type.AcceptVisitor(visitor);
 			}
 
-			return false;
+			return visitor.Found;
 		}
 	}
 }

ILSpy/Analyzers/Builtin/TypeUsedByAnalyzer.cs

@@ -53,7 +53,7 @@ namespace ICSharpCode.ILSpy.Analyzers.Builtin
 				&& analyzedEntity.MetadataToken == type.MetadataToken)
 				yield break;
 
-			var visitor = new TypeDefinitionUsedVisitor(analyzedEntity);
+			var visitor = new TypeDefinitionUsedVisitor(analyzedEntity, false);
 
 			foreach (var bt in type.DirectBaseTypes) {
 				bt.AcceptVisitor(visitor);
@@ -193,9 +193,12 @@ namespace ICSharpCode.ILSpy.Analyzers.Builtin
 
 		public bool Found { get; set; }
 
-		public TypeDefinitionUsedVisitor(ITypeDefinition definition)
+		readonly bool topLevelOnly;
+
+		public TypeDefinitionUsedVisitor(ITypeDefinition definition, bool topLevelOnly)
 		{
 			this.TypeDefinition = definition;
+			this.topLevelOnly = topLevelOnly;
 		}
 
 		public override IType VisitTypeDefinition(ITypeDefinition type)
@@ -204,5 +207,12 @@ namespace ICSharpCode.ILSpy.Analyzers.Builtin
 				&& TypeDefinition.ParentModule.PEFile == type.ParentModule.PEFile;
 			return base.VisitTypeDefinition(type);
 		}
+
+		public override IType VisitParameterizedType(ParameterizedType type)
+		{
+			if (topLevelOnly)
+				return type.GenericType.AcceptVisitor(this);
+			return base.VisitParameterizedType(type);
+		}
 	}
 }