Remove usage of Set literal (dart-lang/stream_transform#72) Fixes dart-lang/stream_transform#71

diff --git a/pkgs/stream_transform/.travis.yml b/pkgs/stream_transform/.travis.yml
index d18b3db..e09a3da 100644
--- a/pkgs/stream_transform/.travis.yml
+++ b/pkgs/stream_transform/.travis.yml

@@ -2,9 +2,9 @@
 branches:
   only: [master]
 dart:
-  # Skipping dev until Dart 2.1.0-dev is out
-  #- dev
+  - dev
   - stable
+  - 2.1.0
 cache:
   directories:
     - $HOME/.pub-cache

diff --git a/pkgs/stream_transform/CHANGELOG.md b/pkgs/stream_transform/CHANGELOG.md
index d50c119..25a42a7 100644
--- a/pkgs/stream_transform/CHANGELOG.md
+++ b/pkgs/stream_transform/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.0.16+1
+
+- Remove usage of Set literal which is not available before Dart 2.2.0
+
 ## 0.0.16
 
 - Allow a `combine` callback to return a `FutureOr<T>` in `scan`. There are no

diff --git a/pkgs/stream_transform/analysis_options.yaml b/pkgs/stream_transform/analysis_options.yaml
index 82dd7e8..6c2853e 100644
--- a/pkgs/stream_transform/analysis_options.yaml
+++ b/pkgs/stream_transform/analysis_options.yaml

@@ -57,7 +57,7 @@
     - package_names
     - package_prefixed_library_names
     - prefer_adjacent_string_concatenation
-    - prefer_collection_literals
+    #- prefer_collection_literals
     - prefer_conditional_assignment
     - prefer_const_constructors
     - prefer_contains

diff --git a/pkgs/stream_transform/lib/src/combine_latest_all.dart b/pkgs/stream_transform/lib/src/combine_latest_all.dart
index 16f2e80..913c3ce 100644
--- a/pkgs/stream_transform/lib/src/combine_latest_all.dart
+++ b/pkgs/stream_transform/lib/src/combine_latest_all.dart

@@ -66,7 +66,7 @@
       assert(subscriptions == null);
 
       final latestData = List<T>(allStreams.length);
-      final hasEmitted = <int>{};
+      final hasEmitted = Set<int>();
       void handleData(int index, T data) {
         latestData[index] = data;
         hasEmitted.add(index);

diff --git a/pkgs/stream_transform/pubspec.yaml b/pkgs/stream_transform/pubspec.yaml
index c0768e9..a681024 100644
--- a/pkgs/stream_transform/pubspec.yaml
+++ b/pkgs/stream_transform/pubspec.yaml

@@ -2,11 +2,11 @@
 description: A collection of utilities to transform and manipulate streams.
 author: Dart Team <misc@dartlang.org>
 homepage: https://www.github.com/dart-lang/stream_transform
-version: 0.0.16
+version: 0.0.16+1
 
 environment:
   sdk: ">=2.1.0 <3.0.0"
 
 dev_dependencies:
-  pedantic: ^1.5.0
+  pedantic: ^1.4.0
   test: ^1.0.0