Prepare for 0.20.2 and fix void problems

.travis.yml

@@ -1,7 +1,7 @@
 language: dart
 sudo: false
 dart:
-  - "dev/raw/2.0.0-dev.69.0"
+  - "dev/raw/latest"
 env:
   - DARTDOC_BOT=main
   - DARTDOC_BOT=packages

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 0.20.2
+* Fix void problems (#1724)
+* Fix crash building Angular docs and problems involving special objects (#1728,
+  #1554)
+* Run pub upgrade to get packages ready for 69.2.
+
 ## 0.20.1
 * Remove name parameter from `@animation` parameter handling, with backwards compatibility
   (#1715)

appveyor.yml

@@ -3,7 +3,7 @@
 # BSD-style license that can be found in the LICENSE file.
 
 install:
-  - ps: wget https://storage.googleapis.com/dart-archive/channels/dev/raw/2.0.0-dev.69.0/sdk/dartsdk-windows-x64-release.zip -OutFile dart-sdk.zip
+  - ps: wget https://storage.googleapis.com/dart-archive/channels/dev/raw/latest/sdk/dartsdk-windows-x64-release.zip -OutFile dart-sdk.zip
   - cmd: echo "Unzipping dart-sdk..."
   - cmd: 7z x dart-sdk.zip -o"C:\tools" -y > nul
   - set PATH=%PATH%;C:\tools\dart-sdk\bin

lib/dartdoc.dart

@@ -37,7 +37,7 @@ export 'package:dartdoc/src/package_meta.dart';
 
 const String name = 'dartdoc';
 // Update when pubspec version changes.
-const String dartdocVersion = '0.20.1';
+const String dartdocVersion = '0.20.2';
 
 /// Helper class to initialize the default generators since they require
 /// GeneratorContext.
@@ -79,7 +79,7 @@ class Dartdoc extends PackageBuilder {
   Stream<String> get onCheckProgress => _onCheckProgress.stream;
 
   @override
-  void logAnalysisErrors(Set<Source> sources) async {
+  Future<void> logAnalysisErrors(Set<Source> sources) async {
     List<AnalysisErrorInfo> errorInfos = [];
     // TODO(jcollins-g): figure out why sources can't contain includeExternals
     // or embedded SDK components without having spurious(?) analysis errors.

lib/src/io_utils.dart

@@ -81,21 +81,21 @@ class MultiFutureTracker<T> {
   ///
   /// That can be extremely brief and there's no longer a guarantee after that
   /// point that another async task has not added a Future to the list.
-  void addFuture(Future<T> future) async {
+  Future<void> addFuture(Future<T> future) async {
     _queue.add(future);
     future.then((f) => _queue.remove(future));
     await _waitUntil(parallel - 1);
   }
 
   /// Wait until fewer or equal to this many Futures are outstanding.
-  void _waitUntil(int max) async {
+  Future<void> _waitUntil(int max) async {
     while (_queue.length > max) {
       await Future.any(_queue);
     }
   }
 
   /// Wait until all futures added so far have completed.
-  void wait() async => await _waitUntil(0);
+  Future<void> wait() async => await _waitUntil(0);
 }
 
 class SubprocessLauncher {

lib/src/model.dart

@@ -1257,11 +1257,18 @@ class Dynamic extends ModelElement {
   Dynamic(Element element, PackageGraph packageGraph)
       : super(element, null, packageGraph, null);
 
+  /// [dynamic] is not a real object, and so we can't document it, so there
+  /// can be nothing canonical for it.
+  @override
+  ModelElement get canonicalModelElement => null;
+
   @override
   ModelElement get enclosingElement => throw new UnsupportedError('');
 
+  /// And similiarly, even if someone references it directly it can have
+  /// no hyperlink.
   @override
-  String get href => throw new StateError('dynamic should not have an href');
+  String get href => null;
 
   @override
   String get kind => 'dynamic';
@@ -5486,7 +5493,7 @@ class PackageBuilder {
 
   PackageBuilder(this.config);
 
-  void logAnalysisErrors(Set<Source> sources) {}
+  Future<void> logAnalysisErrors(Set<Source> sources) async {}
 
   Future<PackageGraph> buildPackageGraph() async {
     PackageMeta packageMeta = config.topLevelPackageMeta;
@@ -5596,7 +5603,6 @@ class PackageBuilder {
       PerformanceLog log = new PerformanceLog(null);
       AnalysisDriverScheduler scheduler = new AnalysisDriverScheduler(log);
       AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-      options.strongMode = true;
       options.enableSuperMixins = true;
       options.previewDart2 = true;