Fix some loads of fields with large offsets.

runtime/vm/flow_graph_compiler_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"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 930 matching lines @@
   __ b(&null_args_loop, PL);
 }
 
 
 void FlowGraphCompiler::GenerateInlinedGetter(intptr_t offset) {
   // LR: return address.
   // SP: receiver.
   // Sequence node has one return node, its input is load field node.
   __ Comment("Inlined Getter");
   __ LoadFromOffset(R0, SP, 0 * kWordSize);
-  __ LoadFromOffset(R0, R0, offset - kHeapObjectTag);
+  __ LoadFieldFromOffset(R0, R0, offset);
   __ ret();
 }
 
 
 void FlowGraphCompiler::GenerateInlinedSetter(intptr_t offset) {
   // LR: return address.
   // SP+1: receiver.
   // SP+0: value.
   // Sequence node has one store node and one return NULL node.
   __ Comment("Inlined Setter");
@@ skipping 858 matching lines @@
 void ParallelMoveResolver::RestoreFpuScratch(FpuRegister reg) {
   __ PopDouble(reg);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64