WIP: Implement ES6 Spread-calls

src/ic/ic-state.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/ic/ic.h"
 #include "src/ic/ic-state.h"
 
 namespace v8 {
 namespace internal {
 
 // static
 void ICUtility::Clear(Isolate* isolate, Address address,
                       ConstantPoolArray* constant_pool) {
   IC::Clear(isolate, address, constant_pool);
 }
 
 
 CallICState::CallICState(ExtraICState extra_ic_state)
     : argc_(ArgcBits::decode(extra_ic_state)),
-      call_type_(CallTypeBits::decode(extra_ic_state)) {}
+      call_type_(CallTypeBits::decode(extra_ic_state)),
+      is_spread_(IsSpreadBits::decode(extra_ic_state)) {}
 
 
 ExtraICState CallICState::GetExtraICState() const {
   ExtraICState extra_ic_state =
-      ArgcBits::encode(argc_) | CallTypeBits::encode(call_type_);
+      ArgcBits::encode(argc_) | CallTypeBits::encode(call_type_) |
+          IsSpreadBits::encode(is_spread_);
   return extra_ic_state;
 }
 
 
 std::ostream& operator<<(std::ostream& os, const CallICState& s) {
   return os << "(args(" << s.arg_count() << "), "
             << (s.call_type() == CallICState::METHOD ? "METHOD" : "FUNCTION")
             << ", ";
 }
 
@@ skipping 468 matching lines @@
     case UNIQUE_NAME:
     case OBJECT:
     case GENERIC:
       return GENERIC;
   }
   UNREACHABLE();
   return GENERIC;  // Make the compiler happy.
 }
 }
 }  // namespace v8::internal