Fix error "Couldn't infer type parameter" in kernel.

pkg/kernel/lib/transformations/continuation.dart

Index: pkg/kernel/lib/transformations/continuation.dart
diff --git a/pkg/kernel/lib/transformations/continuation.dart b/pkg/kernel/lib/transformations/continuation.dart
index 15884910a0283bf9bd0dc8f4c076128e0157a306..112ea43b8274b3f3e182cc2e99039834e589fcb6 100644
--- a/pkg/kernel/lib/transformations/continuation.dart
+++ b/pkg/kernel/lib/transformations/continuation.dart
@@ -155,7 +155,7 @@ class SyncStarFunctionRewriter extends ContinuationRewriterBase {
     //    :iterator.current_=
     //    :iterator.isYieldEach=
     // and return `true` as long as it did something and `false` when it's done.
-    return new Block([
+    return new Block(<Statement>[
         enclosingFunction.body.accept(this),
         new ReturnStatement(new BoolLiteral(false))
     ]);