Avoid the PackageGraph.objectClass field. (#3951)

Rev to 8.3.2 as well

Author: srawlins

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 8.3.2
+
+* Fix a LateInitializationError by not depending on PackageGraph.objectClass.
+
 ## 8.3.1
 
 * Require Dart 3.5 or later.

dartdoc_options.yaml

@@ -1,4 +1,4 @@
 dartdoc:
   linkToSource:
     root: '.'
-    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v8.3.1/%f%#L%l%'
+    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v8.3.2/%f%#L%l%'

lib/src/model/mixin.dart

@@ -16,10 +16,8 @@ class Mixin extends InheritingContainer {
   final MixinElement element;
 
   late final List<ParameterizedElementType> superclassConstraints = [
-    ...element.superclassConstraints
-        .map((InterfaceType i) =>
-            getTypeFor(i, library) as ParameterizedElementType)
-        .where((t) => t.modelElement != packageGraph.objectClass)
+    ...element.superclassConstraints.where((e) => !e.isDartCoreObject).map(
+        (InterfaceType i) => getTypeFor(i, library) as ParameterizedElementType)
   ];
 
   @override

lib/src/model/package_graph.dart

@@ -204,6 +204,7 @@ class PackageGraph with CommentReferable, Nameable {
   final Map<Element, ModelNode> _modelNodes = {};
 
   /// The Object class declared in the Dart SDK's 'dart:core' library.
+  // TODO(srawlins): I think nothing depends on this any longer; remove.
   late InheritingContainer objectClass;
 
   /// Populate's [_modelNodes] with elements in [resolvedLibrary].

lib/src/version.dart

@@ -1 +1 @@
-const packageVersion = '8.3.1';
+const packageVersion = '8.3.2';

pubspec.yaml

@@ -1,5 +1,5 @@
 name: dartdoc
-version: 8.3.1
+version: 8.3.2
 description: A non-interactive HTML documentation generator for Dart source code.
 repository: https://github.com/dart-lang/dartdoc