Revert "Cast errors to HttpExceptions and add lint to convert to tidy up dynamic calls in core libraries."

This reverts commit 5b7bd563d3.

Reason for revert: Broke VM tests, not always HttpException.

Original change's description:
> Cast errors to HttpExceptions and add lint to convert to tidy up dynamic calls in core libraries.
>
> Change-Id: I7ea73b232d13baf84e834d742ebc16f2a081e727
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/262626
> Commit-Queue: Kallen Tu <kallentu@google.com>
> Reviewed-by: Lasse Nielsen <lrn@google.com>
> Reviewed-by: Leaf Petersen <leafp@google.com>

TBR=lrn@google.com,leafp@google.com,kallentu@google.com,dart-scoped@luci-project-accounts.iam.gserviceaccount.com

Change-Id: I1777750c07b84b267d0b62dbfe93d54a6bfee7ae
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/263180
Reviewed-by: Leaf Petersen <leafp@google.com>

pkg/compiler/test/analyses/api_allowed.json

@@ -1,5 +1,6 @@
 {
   "org-dartlang-sdk:///lib/_http/http_impl.dart": {
+    "Dynamic access of 'message'.": 3,
     "Dynamic access of 'address'.": 1,
     "Dynamic access of 'port'.": 1,
     "Dynamic invocation of 'listen'.": 1,

sdk/lib/_http/http_impl.dart

@@ -438,8 +438,8 @@ class _HttpIncoming extends Stream<Uint8List> {
       {Function? onError, void Function()? onDone, bool? cancelOnError}) {
     hasSubscriber = true;
     return _stream.handleError((error) {
-      throw HttpException((error as HttpException).message, uri: uri);
-    }, test: (error) => error is HttpException).listen(onData,
+      throw HttpException(error.message, uri: uri);
+    }).listen(onData,
         onError: onError, onDone: onDone, cancelOnError: cancelOnError);
   }
 
@@ -2062,18 +2062,16 @@ class _HttpClientConnection {
           _subscription!.resume();
         }).catchError((dynamic error, StackTrace stackTrace) {
           _nextResponseCompleter!.completeError(
-              HttpException((error as HttpException).message, uri: _currentUri),
-              stackTrace);
+              HttpException(error.message, uri: _currentUri), stackTrace);
           _nextResponseCompleter = null;
-        }, test: (error) => error is HttpException);
+        });
       } else {
         _nextResponseCompleter!.complete(incoming);
         _nextResponseCompleter = null;
       }
     }, onError: (dynamic error, StackTrace stackTrace) {
       _nextResponseCompleter?.completeError(
-          HttpException((error as HttpException).message, uri: _currentUri),
-          stackTrace);
+          HttpException(error.message, uri: _currentUri), stackTrace);
       _nextResponseCompleter = null;
     }, onDone: () {
       _nextResponseCompleter?.completeError(HttpException(

sdk/lib/convert/json.dart

@@ -622,7 +622,7 @@ class JsonDecoder extends Converter<String, Object?> {
 external dynamic _parseJson(String source, reviver(key, value)?);
 
 // Implementation of encoder/stringifier.
-// ignore: avoid_dynamic_calls
+
 dynamic _defaultToEncodable(dynamic object) => object.toJson();
 
 /// JSON encoder that traverses an object structure and writes JSON source.