[es6] Tail calls support.

src/ic/ic.cc

Index: src/ic/ic.cc
diff --git a/src/ic/ic.cc b/src/ic/ic.cc
index ca0913747426868db813544173d2eb0e87286669..64932796905cc9c07558ad043ffdff9fb38b1e96 100644
--- a/src/ic/ic.cc
+++ b/src/ic/ic.cc
@@ -1562,16 +1562,18 @@ MaybeHandle<Object> StoreIC::Store(Handle<Object> object, Handle<Name> name,
 
 
 Handle<Code> CallIC::initialize_stub(Isolate* isolate, int argc,
-                                     ConvertReceiverMode mode) {
-  CallICTrampolineStub stub(isolate, CallICState(argc, mode));
+                                     ConvertReceiverMode mode,
+                                     TailCallMode tail_call_mode) {
+  CallICTrampolineStub stub(isolate, CallICState(argc, mode, tail_call_mode));
   Handle<Code> code = stub.GetCode();
   return code;
 }
 
 
 Handle<Code> CallIC::initialize_stub_in_optimized_code(
-    Isolate* isolate, int argc, ConvertReceiverMode mode) {
-  CallICStub stub(isolate, CallICState(argc, mode));
+    Isolate* isolate, int argc, ConvertReceiverMode mode,
+    TailCallMode tail_call_mode) {
+  CallICStub stub(isolate, CallICState(argc, mode, tail_call_mode));
   Handle<Code> code = stub.GetCode();
   return code;
 }