Attach type info to extension method and object method tear-offs

test/codegen/methods.dart

Index: test/codegen/methods.dart
diff --git a/test/codegen/methods.dart b/test/codegen/methods.dart
index 7367c011abc1789efa5ab5ff9e8156efbda359b9..b3dd90c3f7319fdd00068918d9a4a5ea26229aee 100644
--- a/test/codegen/methods.dart
+++ b/test/codegen/methods.dart
@@ -55,4 +55,12 @@ test() {
   // Dynamic Tear-off
   dynamic aa = new A();
   var h = aa.x;
+
+  // Tear-off of object methods
+  var ts = a.toString;
+  var nsm = a.noSuchMethod;
+
+  // Tear-off extension methods
+  var c = "".padLeft;
+  var r = (3.0).floor;
 }