Fix annotation of generic method invocations in Fasta inference tests.

pkg/front_end/testcases/inference/future_then.dart

Index: pkg/front_end/testcases/inference/future_then.dart
diff --git a/pkg/front_end/testcases/inference/future_then.dart b/pkg/front_end/testcases/inference/future_then.dart
index 50dae5082b6b47a7b622147917502cce00c7e135..3141aa18e68722229b98331c555902ab1ac6a24b 100644
--- a/pkg/front_end/testcases/inference/future_then.dart
+++ b/pkg/front_end/testcases/inference/future_then.dart
@@ -16,31 +16,31 @@ class MyFuture<T> implements Future<T> {
 
 void main() {
   MyFuture f;
-  Future<int> t1 = /*@promotedType=none*/ f.then(
+  Future<int> t1 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
       /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async =>
           await new Future<int>.value(3));
-  Future<int> t2 = /*@promotedType=none*/ f
-      .then(/*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
+  Future<int> t2 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
+      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
     return await new Future<int>.value(3);
   });
-  Future<int> t3 = /*@promotedType=none*/ f
-      .then(/*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async => 3);
-  Future<int> t4 = /*@promotedType=none*/ f
-      .then(/*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
+  Future<int> t3 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
+      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async => 3);
+  Future<int> t4 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
+      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
     return 3;
   });
-  Future<int> t5 = /*@promotedType=none*/ f.then(
+  Future<int> t5 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
       /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) =>
           new Future<int>.value(3));
-  Future<int> t6 = /*@promotedType=none*/ f
-      .then(/*@returnType=Future<int>*/ (/*@type=dynamic*/ _) {
+  Future<int> t6 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
+      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) {
     return new Future<int>.value(3);
   });
-  Future<int> t7 = /*@promotedType=none*/ f.then(
+  Future<int> t7 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
       /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async =>
           new Future<int>.value(3));
-  Future<int> t8 = /*@promotedType=none*/ f
-      .then(/*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
+  Future<int> t8 = /*@promotedType=none*/ f. /*@typeArgs=int*/ then(
+      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
     return new Future<int>.value(3);
   });
 }