Fixes for SDK packages

Change-Id: I544e4e085cc1e420397d6d825a93376ae586f9a4
Reviewed-on: https://dart-review.googlesource.com/c/88681
Reviewed-by: Kevin Millikin <kmillikin@google.com>

pkg/expect/pubspec.yaml

@@ -1,6 +1,5 @@
 name: expect
-author: "Dart Team <misc@dartlang.org>"
-homepage: http://www.dartlang.org
+publish_to: none
 description: >
  Expect is used for tests that do not want to make use of the
  Dart unit test library - for example, the core language tests.
@@ -8,4 +7,4 @@ description: >
  the expect() function in the unit test library instead for
  test assertions.
 environment:
-  sdk: ">=0.8.10+6 <2.0.0"
+  sdk: ">=0.8.10+6 <3.0.0"

pkg/kernel/pubspec.yaml

@@ -11,6 +11,8 @@ dependencies:
   path: ^1.3.9
   args: '>=0.13.4 <2.0.0'
 dev_dependencies:
+  expect:
+    path: ../expect
   front_end: 0.1.8
   test: ^1.3.4
   stack_trace: ^1.6.6

pkg/testing/pubspec.yaml

@@ -1,5 +1,6 @@
 # This pubspec is currently mainly used to make it easier to develop by making 
 # it a package.
 name: testing
-#version: do-not-upload
-dependencies:
+publish_to: none
+environment:
+  sdk: '>=2.0.0 <3.0.0'