Testing for reexports.

Author: jcollins-g

testing/test_package/lib/example.dart

@@ -677,4 +677,5 @@ extension on Object {
 
 /// This class has nothing to do with [_Shhh], [FancyList], or [AnExtension.call],
 /// but should not crash because we referenced them.
+/// We should be able to find [DocumentThisExtensionOnce], too.
 class ExtensionReferencer {}

testing/test_package/lib/reexport_two.dart

@@ -1,6 +1,7 @@
 /// {@canonicalFor reexport.somelib.SomeClass}
 /// {@canonicalFor reexport.somelib.AUnicornClass}
 /// {@canonicalFor something.ThatDoesntExist}
+/// {@canonicalFor reexport.somelib.DocumentThisExtensionOnce}
 /// {@category Unreal}
 library reexport_two;
 

testing/test_package/lib/src/somelib.dart

@@ -7,3 +7,19 @@ class SomeOtherClass {}
 class YetAnotherClass {}
 
 class AUnicornClass {}
+
+
+/// A private extension.
+extension _Unseen on Object {
+  void doYouSeeMe() { }
+}
+
+/// An extension without a name
+extension on List {
+  void somethingNew() { }
+}
+
+/// [_Unseen] is not seen, but [DocumentMe] is.
+extension DocumentThisExtensionOnce on String {
+  String get reportOnString => '$this is wonderful';
+}