Load the native call wrapper via Thread.

runtime/vm/assembler_arm64.cc

 // Copyright (c) 2014, 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"  // NOLINT
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/cpu.h"
 #include "vm/longjump.h"
@@ skipping 366 matching lines @@
     // If the raw smi does not fit into a 32-bit signed int, then we'll keep
     // the raw value in the object pool.
     return !Utils::IsInt(32, reinterpret_cast<int64_t>(object.raw()));
   }
   ASSERT(object.IsNotTemporaryScopedHandle());
   ASSERT(object.IsOld());
   return true;
 }
 
 
-void Assembler::LoadExternalLabel(Register dst, const ExternalLabel* label) {
-  if (constant_pool_allowed()) {
-    const int32_t offset = ObjectPool::element_offset(
-        object_pool_wrapper_.FindExternalLabel(label, kNotPatchable));
-    LoadWordFromPoolOffset(dst, offset);
-  } else {
-    const int64_t target = static_cast<int64_t>(label->address());
-    LoadImmediate(dst, target);
-  }
-}
-
-
 void Assembler::LoadNativeEntry(Register dst,
                                 const ExternalLabel* label) {
   const int32_t offset = ObjectPool::element_offset(
       object_pool_wrapper_.FindNativeEntry(label, kNotPatchable));
   LoadWordFromPoolOffset(dst, offset);
 }
 
 
-void Assembler::LoadExternalLabelFixed(Register dst,
-                                       const ExternalLabel* label,
-                                       Patchability patchable) {
-  const int32_t offset = ObjectPool::element_offset(
-      object_pool_wrapper_.FindExternalLabel(label, patchable));
-  LoadWordFromPoolOffsetFixed(dst, offset);
-}
-
-
 void Assembler::LoadIsolate(Register dst) {
   ldr(dst, Address(THR, Thread::isolate_offset()));
 }
 
 
 void Assembler::LoadObjectHelper(Register dst,
                                  const Object& object,
                                  bool is_unique) {
   if (Thread::CanLoadFromThread(object)) {
     ldr(dst, Address(THR, Thread::OffsetFromThread(object)));
@@ skipping 1055 matching lines @@
     add(base, array, Operand(index, LSL, shift));
   }
   const OperandSize size = Address::OperandSizeFor(cid);
   ASSERT(Address::CanHoldOffset(offset, Address::Offset, size));
   return Address(base, offset, Address::Offset, size);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64