Fix annotation of promoted parameters in Fasta inference tests.

pkg/front_end/testcases/inference/block_bodied_lambdas_lub.dart

Index: pkg/front_end/testcases/inference/block_bodied_lambdas_lub.dart
diff --git a/pkg/front_end/testcases/inference/block_bodied_lambdas_lub.dart b/pkg/front_end/testcases/inference/block_bodied_lambdas_lub.dart
index 20ef6c7f4ba986003a5b1b97c9458d5a9a9bcfbb..fba7ab69f26e558844bb20b03cfb89f73da5a950 100644
--- a/pkg/front_end/testcases/inference/block_bodied_lambdas_lub.dart
+++ b/pkg/front_end/testcases/inference/block_bodied_lambdas_lub.dart
@@ -12,9 +12,9 @@ test2() {
   var /*@type=Iterable<num>*/ y = /*@promotedType=none*/ o
       .map(/*@returnType=num*/ (/*@type=num*/ x) {
     if (new Random().nextBool()) {
-      return x.toInt() + 1;
+      return /*@promotedType=none*/ x.toInt() + 1;
     } else {
-      return x.toDouble();
+      return /*@promotedType=none*/ x.toDouble();
     }
   });
   Iterable<num> w = /*@promotedType=none*/ y;