Begins work on ARM64, first assembler test.

runtime/vm/stack_frame_arm64.h

+// 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.
+
+#ifndef VM_STACK_FRAME_ARM64_H_
+#define VM_STACK_FRAME_ARM64_H_
+
+namespace dart {
+
+// TODO(zra):
+// These are the values for ARM. Fill in the values for ARM64 as they are
+// needed.
+
+static const int kDartFrameFixedSize = 4;  // PP, FP, LR, PC marker.
+static const int kSavedPcSlotFromSp = -2;
+
+static const int kFirstObjectSlotFromFp = -1;  // Used by GC to traverse stack.
+
+static const int kFirstLocalSlotFromFp = -2;
+static const int kSavedCallerPpSlotFromFp = -1;
+static const int kSavedCallerFpSlotFromFp = 0;
+static const int kSavedCallerPcSlotFromFp = 1;
+static const int kPcMarkerSlotFromFp = 2;
+static const int kParamEndSlotFromFp = 2;  // One slot past last parameter.
+static const int kCallerSpSlotFromFp = 3;
+
+// Entry and exit frame layout.
+static const int kSavedContextSlotFromEntryFp = -27;
+static const int kExitLinkSlotFromEntryFp = -26;
+static const int kSavedVMTagSlotFromEntryFp = -25;
+
+}  // namespace dart
+
+#endif  // VM_STACK_FRAME_ARM64_H_