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

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index e3940dad649cb1de5b44bcb29431495d1afc58d5..93e86fde33846f3cf4b43f02d47a934a4262987e 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -538,6 +538,21 @@ Type* CompareNilICStub::GetInputType(Zone* zone, Handle<Map> map) {
 }
 
 
+void CallIC_RoundStub::PrintState(std::ostream& os) const {  // NOLINT
+  os << state() << " (Round)";
+}
+
+
+void CallIC_FloorStub::PrintState(std::ostream& os) const {  // NOLINT
+  os << state() << " (Floor)";
+}
+
+
+void CallIC_CeilStub::PrintState(std::ostream& os) const {  // NOLINT
+  os << state() << " (Ceil)";
+}
+
+
 void CallIC_ArrayStub::PrintState(std::ostream& os) const {  // NOLINT
   os << state() << " (Array)";
 }