Begins work on ARM64, first assembler test.

runtime/vm/stub_code.cc

Index: runtime/vm/stub_code.cc
===================================================================
--- runtime/vm/stub_code.cc	(revision 34648)
+++ runtime/vm/stub_code.cc	(working copy)
@@ -5,6 +5,7 @@
 #include "vm/stub_code.h"
 
 #include "platform/assert.h"
+#include "platform/globals.h"
 #include "vm/assembler.h"
 #include "vm/disassembler.h"
 #include "vm/flags.h"
@@ -50,9 +51,12 @@
 
 
 void StubCode::InitOnce() {
+  // TODO(zra): ifndef to be removed when ARM64 port is ready.
+#if !defined(TARGET_ARCH_ARM64)
   // Generate all the stubs.
   Code& code = Code::Handle();
   VM_STUB_CODE_LIST(STUB_CODE_GENERATE);
+#endif
 }
 
 
@@ -66,9 +70,12 @@
 
 
 void StubCode::Init(Isolate* isolate) {
+  // TODO(zra): ifndef to be removed when ARM64 port is ready.
+#if !defined(TARGET_ARCH_ARM64)
   StubCode* stubs = new StubCode();
   isolate->set_stub_code(stubs);
   stubs->GenerateFor(isolate);
+#endif
 }