Collect type feedback on result of Math.[round|ceil|floor]

src/type-feedback-vector.cc

Index: src/type-feedback-vector.cc
diff --git a/src/type-feedback-vector.cc b/src/type-feedback-vector.cc
index 3cf81f8c5f16228f2fece4935adcfe77e722b446..15710ab76f3c8090882fb24c429dce89e408af78 100644
--- a/src/type-feedback-vector.cc
+++ b/src/type-feedback-vector.cc
@@ -343,6 +343,14 @@ void CallICNexus::ConfigureMonomorphicArray() {
 }
 
 
+void CallICNexus::ConfigureMonomorphicMathFunction(
+    Handle<JSFunction> function) {
+  Handle<WeakCell> new_cell = GetIsolate()->factory()->NewWeakCell(function);
+  SetFeedback(*new_cell);
+  SetFeedbackExtra(Smi::FromInt(0));
+}
+
+
 void CallICNexus::ConfigureUninitialized() {
   SetFeedback(*vector()->UninitializedSentinel(GetIsolate()),
               SKIP_WRITE_BARRIER);