treat void as a top type, analyzer fix for #28763

pkg/dev_compiler/lib/js/es6/dart_sdk.js

Index: pkg/dev_compiler/lib/js/es6/dart_sdk.js
diff --git a/pkg/dev_compiler/lib/js/es6/dart_sdk.js b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
index 8e04bfc1d75c8383b38b0de694a111126c50aec1..7015400ee3a2afcf1c987ceba435c78011834ac4 100644
--- a/pkg/dev_compiler/lib/js/es6/dart_sdk.js
+++ b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
@@ -10437,7 +10437,7 @@ async.Stream$ = dart.generic(T => {
 
             if (async.Future.is(newValue)) {
               subscription.pause();
-              newValue.then(dart.void)(add, {onError: addError}).whenComplete(dart.bind(subscription, 'resume'));
+              newValue.then(dart.dynamic)(add, {onError: addError}).whenComplete(dart.bind(subscription, 'resume'));
             } else {
               controller.add(E.as(newValue));
             }
@@ -18843,7 +18843,7 @@ async._DoneSubscription$ = dart.generic(T => {
     onDone(handleDone) {}
     pause(resumeSignal) {
       if (resumeSignal === void 0) resumeSignal = null;
-      if (resumeSignal != null) resumeSignal.then(dart.void)(dart.bind(this, _resume));
+      if (resumeSignal != null) resumeSignal.then(dart.dynamic)(dart.bind(this, _resume));
       this[_pauseCount] = dart.notNull(this[_pauseCount]) + 1;
     }
     resume() {
@@ -39589,7 +39589,7 @@ io._FileStream = class _FileStream extends async.Stream$(core.List$(core.int)) {
     dart.fn(onReady, RandomAccessFileTovoid());
     const onOpenFile = (function(file) {
       if (dart.notNull(this[_position]) > 0) {
-        file.setPosition(this[_position]).then(dart.void)(onReady, {onError: dart.fn((e, s) => {
+        file.setPosition(this[_position]).then(dart.dynamic)(onReady, {onError: dart.fn((e, s) => {
             this[_controller].addError(e, core.StackTrace._check(s));
             this[_readInProgress] = false;
             this[_closeFile]();
@@ -39606,7 +39606,7 @@ io._FileStream = class _FileStream extends async.Stream$(core.List$(core.int)) {
     }).bind(this);
     dart.fn(openFailed, dynamicAnddynamicTovoid());
     if (this[_path] != null) {
-      io.File.new(this[_path]).open({mode: io.FileMode.READ}).then(dart.void)(onOpenFile, {onError: openFailed});
+      io.File.new(this[_path]).open({mode: io.FileMode.READ}).then(dart.dynamic)(onOpenFile, {onError: openFailed});
     } else {
       try {
         onOpenFile(io._File._openStdioSync(0));
@@ -43215,7 +43215,7 @@ io._StreamSinkImpl$ = dart.generic(T => {
       return this.done;
     }
     [_closeTarget]() {
-      this[_target].close().then(dart.void)(dart.bind(this, _completeDoneValue), {onError: dart.bind(this, _completeDoneError)});
+      this[_target].close().then(dart.dynamic)(dart.bind(this, _completeDoneValue), {onError: dart.bind(this, _completeDoneError)});
     }
     get done() {
       return this[_doneCompleter].future;
@@ -43872,7 +43872,7 @@ io._HttpClientRequest = class _HttpClientRequest extends io._HttpOutboundMessage
     } else {
       future = FutureOfHttpClientResponse().value(response);
     }
-    future.then(dart.void)(dart.fn(v => this[_responseCompleter].complete(v), HttpClientResponseTovoid()), {onError: dart.bind(this[_responseCompleter], 'completeError')});
+    future.then(dart.dynamic)(dart.fn(v => this[_responseCompleter].complete(v), HttpClientResponseTovoid()), {onError: dart.bind(this[_responseCompleter], 'completeError')});
   }
   [_onError](error, stackTrace) {
     this[_responseCompleter].completeError(error, stackTrace);
@@ -44517,7 +44517,7 @@ io._HttpClientConnection = class _HttpClientConnection extends core.Object {
   close() {
     this.closed = true;
     this[_httpClient][_connectionClosed](this);
-    this[_streamFuture].then(dart.void)(dart.fn(_ => this[_socket].destroy(), dynamicTovoid()));
+    this[_streamFuture].then(dart.dynamic)(dart.fn(_ => this[_socket].destroy(), dynamicTovoid()));
   }
   createProxyTunnel(host, port, proxy, callback) {
     let request = this.send(core.Uri.new({host: core.String._check(host), port: core.int._check(port)}), core.int._check(port), "CONNECT", io._Proxy._check(proxy));
@@ -44676,7 +44676,7 @@ io._ConnectionTarget = class _ConnectionTarget extends core.Object {
     if (client.maxConnectionsPerHost != null && dart.notNull(this[_active].length) + dart.notNull(this[_connecting]) >= dart.notNull(client.maxConnectionsPerHost)) {
       let completer = async.Completer.new();
       this[_pending].add(dart.fn(() => {
-        this.connect(uriHost, uriPort, proxy, client).then(dart.void)(dart.bind(completer, 'complete'), {onError: dart.bind(completer, 'completeError')});
+        this.connect(uriHost, uriPort, proxy, client).then(dart.dynamic)(dart.bind(completer, 'complete'), {onError: dart.bind(completer, 'completeError')});
       }, VoidToNull()));
       return FutureOf_ConnectionInfo()._check(completer.future);
     }
@@ -49218,7 +49218,7 @@ io._RawSecureSocket = class _RawSecureSocket extends async.Stream$(io.RawSocketE
     this[_closedWrite] = true;
     this[_closedRead] = true;
     if (this[_socket] != null) {
-      this[_socket].close().then(dart.void)(dart.bind(this, _completeCloseCompleter));
+      this[_socket].close().then(dart.dynamic)(dart.bind(this, _completeCloseCompleter));
     } else {
       this[_completeCloseCompleter]();
     }
@@ -51579,7 +51579,7 @@ io._WebSocketTransformerImpl = class _WebSocketTransformerImpl extends core.Obje
   }
   bind(stream) {
     stream.listen(dart.fn(request => {
-      io._WebSocketTransformerImpl._upgrade(request, this[_protocolSelector], this[_compression]).then(dart.void)(dart.fn(webSocket => this[_controller].add(webSocket), WebSocketTovoid())).catchError(dart.bind(this[_controller], 'addError'));
+      io._WebSocketTransformerImpl._upgrade(request, this[_protocolSelector], this[_compression]).then(dart.dynamic)(dart.fn(webSocket => this[_controller].add(webSocket), WebSocketTovoid())).catchError(dart.bind(this[_controller], 'addError'));
     }, HttpRequestToNull()), {onDone: dart.fn(() => {
         this[_controller].close();
       }, VoidToNull())});