Create and cache method extraction stub in the ICData.

runtime/vm/code_generator.cc

Index: runtime/vm/code_generator.cc
diff --git a/runtime/vm/code_generator.cc b/runtime/vm/code_generator.cc
index 87b2a89ce36376f5c4f5177f71085f7ce9f022c5..37e00ad5626b6774fee919ece5c26fef2f5d478f 100644
--- a/runtime/vm/code_generator.cc
+++ b/runtime/vm/code_generator.cc
@@ -1097,7 +1097,8 @@ DEFINE_RUNTIME_ENTRY(UpdateICDataTwoArgs, 4) {
 // Otherwise return null.
 static RawInstance* ResolveImplicitClosure(const Instance& receiver,
                                            const Class& receiver_class,
-                                           const String& target_name) {
+                                           const String& target_name,
+                                           const ICData& ic_data) {
   // 1. Check if was a getter call.
   if (!Field::IsGetterName(target_name)) return Instance::null();
 
@@ -1120,6 +1121,11 @@ static RawInstance* ResolveImplicitClosure(const Instance& receiver,
         AbstractTypeArguments::Handle(receiver.GetTypeArguments());
     closure.SetTypeArguments(type_arguments);
   }
+
+  ASSERT(ic_data.num_args_tested() == 1);
+  ic_data.AddReceiverCheck(
+      receiver_class.id(),
+      Function::Handle(StubCode::GetMethodExtractor(closure_function)));
   return closure.raw();
 }
 
@@ -1404,7 +1410,8 @@ DEFINE_RUNTIME_ENTRY(InstanceFunctionLookup, 4) {
 
   Instance& closure = Instance::Handle(ResolveImplicitClosure(receiver,
                                                               receiver_class,
-                                                              target_name));
+                                                              target_name,
+                                                              ic_data));
   if (!closure.IsNull()) {
     arguments.SetReturn(closure);
     return;