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 29fbb3c8648a8fff2fbbdcba11ffefee7be3b826..41cac84db4ff8104eb4bcfb197f79c1e9a0009ec 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -537,6 +537,21 @@ 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)";
 }