Set MethodInvocation.interfaceTarget during type inference.

pkg/front_end/testcases/inference/future_then_6.dart

Index: pkg/front_end/testcases/inference/future_then_6.dart
diff --git a/pkg/front_end/testcases/inference/future_then_6.dart b/pkg/front_end/testcases/inference/future_then_6.dart
index d345bb026c8d8d875ac08d32ca6557f079a9957a..e188ad840603639a3d19fb697371dc36b25faead 100644
--- a/pkg/front_end/testcases/inference/future_then_6.dart
+++ b/pkg/front_end/testcases/inference/future_then_6.dart
@@ -16,31 +16,39 @@ class MyFuture<T> implements Future<T> {
 
 void main() {
   Future f;
-  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. /*@typeArgs=int*/ then(
-      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
+  Future<int> t1 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async =>
+              await new Future<int>.value(3));
+  Future<int> t2 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
     return await new Future<int>.value(3);
   });
-  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 {
+  Future<int> t3 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async => 3);
+  Future<int> t4 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
     return 3;
   });
-  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. /*@typeArgs=int*/ then(
-      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) {
+  Future<int> t5 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) =>
+              new Future<int>.value(3));
+  Future<int> t6 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) {
     return new Future<int>.value(3);
   });
-  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. /*@typeArgs=int*/ then(
-      /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
+  Future<int> t7 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async =>
+              new Future<int>.value(3));
+  Future<int> t8 = /*@promotedType=none*/ f
+      . /*@typeArgs=int*/ /*@target=Future::then*/ then(
+          /*@returnType=Future<int>*/ (/*@type=dynamic*/ _) async {
     return new Future<int>.value(3);
   });
 }