add some more dartdoc references

Author: devoncarew

lib/src/model.dart

@@ -1363,8 +1363,7 @@ abstract class ModelElement implements Comparable, Nameable, Documentable {
   bool get canHaveParameters =>
       element is ExecutableElement || element is FunctionTypeAliasElement;
 
-  /// Returns the docs, stripped of their
-  /// leading comments syntax.
+  /// Returns the docs, stripped of their leading comments syntax.
   ///
   /// This getter will walk up the inheritance hierarchy
   /// to find docs, if the current class doesn't have docs

testing/test_package/lib/example.dart

@@ -269,12 +269,12 @@ class PublicClassImplementsPrivateInterface implements _PrivateInterface {
   void test() {}
 }
 
-/// [Object] foo bar
+/// Foo bar.
 ///
-/// 3. All references should be hyperlinks. [Object] [MyError] [ShapeType]
-///    [MyError] [MyException]
-///    [MyError] [MyException] [Object]
-///    [ShapeType] foo bar
+/// 3. All references should be hyperlinks. [MyError] and
+///    [ShapeType] and [MyError] and [MyException] and
+///    [MyError] and [MyException] and
+///    [ShapeType] foo bar.
 class ShapeType extends _RetainedEnum {
   static const ShapeType rect = const ShapeType._internal("Rect");
   static const ShapeType ellipse = const ShapeType._internal("Ellipse");

testing/test_package/lib/fake.dart

@@ -467,3 +467,13 @@ void paintImage2(
   // nothing to do here -
 
 }
+
+/// Test operator references: [OperatorReferenceClass.==].
+class OperatorReferenceClass {
+  OperatorReferenceClass();
+
+  @override
+  bool operator ==(dynamic other) {
+    return false;
+  }
+}