Enable code generation for array literals....

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
===================================================================
--- src/x64/macro-assembler-x64.cc	(revision 2231)
+++ src/x64/macro-assembler-x64.cc	(working copy)
@@ -45,6 +45,14 @@
 }
 
 
+// TODO(x64): For now, the write barrier is disabled on x64 and we
+// therefore generate no code.  This should be fixed when the write
+// barrier is enabled.
+void MacroAssembler::RecordWrite(Register object, int offset,
+                                 Register value, Register scratch) {
+}
+
+
 void MacroAssembler::Assert(Condition cc, const char* msg) {
   if (FLAG_debug_code) Check(cc, msg);
 }
@@ -350,6 +358,21 @@
 }
 
 
+void MacroAssembler::CmpHeapObject(Register heap_object_reg,
+                                   Handle<Object> heap_object) {
+  ASSERT(heap_object->IsHeapObject());
+  movq(kScratchRegister, heap_object, RelocInfo::EMBEDDED_OBJECT);
+  cmpq(heap_object_reg, kScratchRegister);
+}
+
+
+void MacroAssembler::PushHeapObject(Handle<Object> heap_object) {
+  ASSERT(heap_object->IsHeapObject());
+  movq(kScratchRegister, heap_object, RelocInfo::EMBEDDED_OBJECT);
+  push(kScratchRegister);
+}
+
+
 void MacroAssembler::CmpObjectType(Register heap_object,
                                    InstanceType type,
                                    Register map) {