Continue learning for calls in optimized code when we have no type feedback.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 26188a2aea7ae8ad943dfdb89728b9e7db3d22ef..bdcdc22890a8f80a28ef33e7640c1b52db6eb9af 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -968,6 +968,15 @@ std::ostream& HBinaryCall::PrintDataTo(std::ostream& os) const {  // NOLINT
 }
 
 
+std::ostream& HCallFunction::PrintDataTo(std::ostream& os) const {  // NOLINT
+  os << NameOf(context()) << " " << NameOf(function());
+  if (HasVectorAndSlot()) {
+    os << " (type-feedback-vector icslot " << slot().ToInt() << ")";
+  }
+  return os;
+}
+
+
 void HBoundsCheck::ApplyIndexChange() {
   if (skip_check()) return;