Fix golden files caused by new dartdoc update. (#1446)

Author: isoos

test/goldens/end2end/async-2.11.0.json

@@ -79,7 +79,7 @@
         "grantedPoints": 10,
         "maxPoints": 20,
         "status": "failed",
-        "summary": "### [*] 10/10 points: 20% or more of the public API has dartdoc comments\n\n246 out of 246 API elements (100.0 %) have documentation comments.\n\n### [x] 0/10 points: Package has an example\n\n<details>\n<summary>\nNo example found.\n</summary>\n\nSee [package layout](https://dart.dev/tools/pub/package-layout#examples) guidelines on how to add an example.\n</details>\n"
+        "summary": "### [*] 10/10 points: 20% or more of the public API has dartdoc comments\n\n246 out of 263 API elements (93.5 %) have documentation comments.\n\nSome symbols that are missing documentation: `async.AsyncMemoizer.AsyncMemoizer.new`, `async.ChunkedStreamReader.ChunkedStreamReader.new`, `async.DelegatingFuture.DelegatingFuture.new`, `async.DelegatingStream.DelegatingStream.new`, `async.ErrorResult.ErrorResult.new`.\n\n### [x] 0/10 points: Package has an example\n\n<details>\n<summary>\nNo example found.\n</summary>\n\nSee [package layout](https://dart.dev/tools/pub/package-layout#examples) guidelines on how to add an example.\n</details>\n"
       },
       {
         "id": "platform",

test/goldens/end2end/async-2.11.0.json_report.md

@@ -15,7 +15,9 @@ Detected license: `BSD-3-Clause`.
 
 ### [*] 10/10 points: 20% or more of the public API has dartdoc comments
 
-246 out of 246 API elements (100.0 %) have documentation comments.
+246 out of 263 API elements (93.5 %) have documentation comments.
+
+Some symbols that are missing documentation: `async.AsyncMemoizer.AsyncMemoizer.new`, `async.ChunkedStreamReader.ChunkedStreamReader.new`, `async.DelegatingFuture.DelegatingFuture.new`, `async.DelegatingStream.DelegatingStream.new`, `async.ErrorResult.ErrorResult.new`.
 
 ### [x] 0/10 points: Package has an example
 

test/goldens/end2end/dnd-2.0.1.json

@@ -63,7 +63,7 @@
         "grantedPoints": 20,
         "maxPoints": 20,
         "status": "passed",
-        "summary": "### [*] 10/10 points: 20% or more of the public API has dartdoc comments\n\n70 out of 72 API elements (97.2 %) have documentation comments.\n\nSome symbols that are missing documentation: `dnd`, `dnd.DraggablesAcceptor.draggableIds`.\n\n### [*] 10/10 points: Package has an example\n"
+        "summary": "### [*] 10/10 points: 20% or more of the public API has dartdoc comments\n\n70 out of 77 API elements (90.9 %) have documentation comments.\n\nSome symbols that are missing documentation: `dnd`, `dnd.Acceptor.Acceptor.new`, `dnd.AnimationHelper.AnimationHelper.new`, `dnd.CloneAvatarHandler.CloneAvatarHandler.new`, `dnd.DraggablesAcceptor.DraggablesAcceptor.new`.\n\n### [*] 10/10 points: Package has an example\n"
       },
       {
         "id": "platform",

test/goldens/end2end/dnd-2.0.1.json_report.md

@@ -15,9 +15,9 @@ Detected license: `MIT`.
 
 ### [*] 10/10 points: 20% or more of the public API has dartdoc comments
 
-70 out of 72 API elements (97.2 %) have documentation comments.
+70 out of 77 API elements (90.9 %) have documentation comments.
 
-Some symbols that are missing documentation: `dnd`, `dnd.DraggablesAcceptor.draggableIds`.
+Some symbols that are missing documentation: `dnd`, `dnd.Acceptor.Acceptor.new`, `dnd.AnimationHelper.AnimationHelper.new`, `dnd.CloneAvatarHandler.CloneAvatarHandler.new`, `dnd.DraggablesAcceptor.DraggablesAcceptor.new`.
 
 ### [*] 10/10 points: Package has an example