- Remove deprecated Dart API calls Dart_ClosureSmrck and DartClosureSetSmrck

vm/stub_code_x64.cc

 // 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.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/assembler_macros.h"
 #include "vm/compiler.h"
@@ skipping 1392 matching lines @@
       __ addq(RBX, Immediate(kHeapObjectTag));
       __ movq(Address(RAX, Closure::context_offset()), RBX);
     } else {
       __ movq(Address(RAX, Closure::context_offset()), CTX);
     }
 
     // Set the type arguments field in the newly allocated closure.
     __ movq(R10, Address(RSP, kTypeArgumentsOffset));
     __ movq(Address(RAX, Closure::type_arguments_offset()), R10);
 
-    __ movq(Address(RAX, Closure::smrck_offset()), raw_null);
-
     // Done allocating and initializing the instance.
     // RAX: new object.
     __ addq(RAX, Immediate(kHeapObjectTag));
     __ ret();
 
     __ Bind(&slow_case);
   }
   if (has_type_arguments) {
     __ movq(RCX, Address(RSP, kTypeArgumentsOffset));
   }
@@ skipping 590 matching lines @@
   __ CallRuntime(kUpdateICDataTwoArgsRuntimeEntry);
   __ Drop(4);
   __ LeaveFrame();
 
   __ jmp(&compute_result, Assembler::kNearJump);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64