Migrate test block 47 and downstream dependencies to Dart 2.0.

tests/language_2/checked_setter2_test.dart

Index: tests/language_2/checked_setter2_test.dart
diff --git a/tests/language_strong/checked_setter2_test.dart b/tests/language_2/checked_setter2_test.dart
similarity index 55%
rename from tests/language_strong/checked_setter2_test.dart
rename to tests/language_2/checked_setter2_test.dart
index 970d505b282c0e4bb070ba1e8af707a0abe0c756..9a8098aa0cc6371ca059479cbda2917b6d2f4068 100644
--- a/tests/language_strong/checked_setter2_test.dart
+++ b/tests/language_2/checked_setter2_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// Test that implicit setters in checked mode do a type check generic types.
+// Test that implicit setters do a type check generic types.
 
 import "package:expect/expect.dart";
 
@@ -18,14 +18,5 @@ var array = [new B()];
 
 main() {
   array[0].c = new C();
-  bool inCheckedMode = false;
-  try {
-    var i = 42;
-    String a = i;
-  } catch (e) {
-    inCheckedMode = true;
-  }
-  if (inCheckedMode) {
-    Expect.throws(() => array[0].c = new C<bool>(), (e) => e is TypeError);
-  }
+  Expect.throws(() => array[0].c = /*@compile-error=unspecified*/new C<bool>(), (e) => e is TypeError);

[bkonyi, 2017/08/09 16:23:03]

Do we need this Expect.throws(...) if this line is going to cause static errors?

[jcollins, 2017/08/15 14:55:15]

Done.

 }