Make SendPortImpl_internalSend not take a reply port as argument.

runtime/vm/bootstrap_natives.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_BOOTSTRAP_NATIVES_H_
 #define VM_BOOTSTRAP_NATIVES_H_
 
 #include "vm/native_entry.h"
 
 // bootstrap dart natives used in the core dart library.
@@ skipping 26 matching lines @@
   V(Integer_truncDivFromInteger, 2)                                            \
   V(Integer_moduloFromInteger, 2)                                              \
   V(Integer_greaterThanFromInteger, 2)                                         \
   V(Integer_equalToInteger, 2)                                                 \
   V(Integer_fromEnvironment, 3)                                                \
   V(Integer_parse, 1)                                                          \
   V(Integer_leftShiftWithMask32, 3)                                            \
   V(Bool_fromEnvironment, 3)                                                   \
   V(RawReceivePortImpl_factory, 1)                                             \
   V(RawReceivePortImpl_closeInternal, 1)                                       \
-  V(SendPortImpl_sendInternal_, 3)                                             \
+  V(SendPortImpl_sendInternal_, 2)                                             \
   V(Smi_shlFromInt, 2)                                                         \
   V(Smi_shrFromInt, 2)                                                         \
   V(Smi_bitNegate, 1)                                                          \
   V(Smi_bitLength, 1)                                                          \
   V(Mint_bitNegate, 1)                                                         \
   V(Mint_bitLength, 1)                                                         \
   V(Mint_shlFromInt, 2)                                                        \
   V(Bigint_bitNegate, 1)                                                       \
   V(Bigint_bitLength, 1)                                                       \
   V(Bigint_shlFromInt, 2)                                                      \
@@ skipping 267 matching lines @@
   static void DN_##name(Dart_NativeArguments args);
 
   BOOTSTRAP_NATIVE_LIST(DECLARE_BOOTSTRAP_NATIVE)
 
 #undef DECLARE_BOOTSTRAP_NATIVE
 };
 
 }  // namespace dart
 
 #endif  // VM_BOOTSTRAP_NATIVES_H_