Remove isIndexer parameter from PropertyToString, always use IProperty.IsIndexer

ILSpy/Languages/CSharpLanguage.cs

@@ -440,12 +440,12 @@ namespace ICSharpCode.ILSpy
 			return TypeToStringInternal(field.DeclaringTypeDefinition, includeNamespace) + "." + simple;
 		}
 
-		public override string PropertyToString(IProperty property, bool includeTypeName, bool includeNamespace, bool? isIndexer = null)
+		public override string PropertyToString(IProperty property, bool includeTypeName, bool includeNamespace)
 		{
 			if (property == null)
 				throw new ArgumentNullException(nameof(property));
 			var buffer = new System.Text.StringBuilder();
-			if (isIndexer.Value) {
+			if (property.IsIndexer) {
 				if (property.IsExplicitInterfaceImplementation) {
 					string name = property.Name;
 					int index = name.LastIndexOf('.');

ILSpy/Languages/Language.cs

@@ -180,7 +180,7 @@ namespace ICSharpCode.ILSpy
 			return GetDisplayName(field, includeTypeName, includeNamespace) + " : " + TypeToString(field.ReturnType, includeNamespace);
 		}
 
-		public virtual string PropertyToString(IProperty property, bool includeTypeName, bool includeNamespace, bool? isIndexer = null)
+		public virtual string PropertyToString(IProperty property, bool includeTypeName, bool includeNamespace)
 		{
 			if (property == null)
 				throw new ArgumentNullException(nameof(property));

ILSpy/SearchStrategies.cs

@@ -167,7 +167,7 @@ namespace ICSharpCode.ILSpy
 				case IField f:
 					return language.FieldToString(f, fullName, fullName);
 				case IProperty p:
-					return language.PropertyToString(p, fullName, fullName, p.IsIndexer);
+					return language.PropertyToString(p, fullName, fullName);
 				case IMethod m:
 					return language.MethodToString(m, fullName, fullName);
 				case IEvent e: