Fix build fail on mac.

runtime/vm/intermediate_language_x64.cc

 // Copyright (c) 2013, 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_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 2145 matching lines @@
                                    Register result) {
   if (FLAG_throw_on_javascript_int_overflow) {
     ASSERT(overflow != NULL);
     __ movq(TMP, result);  // result is a tagged Smi.
     // Bits 55...64 must be all 0 or all 1. (It would be bit 54, but result
     // is tagged.)
     __ shlq(result, Immediate(64 - 55));
     __ sarq(result, Immediate(64 - 55));
     __ cmpq(result, TMP);
     __ j(NOT_EQUAL, overflow);  // 54-bit overflow.
-    __ cmpq(result, Immediate(-0x1FFFFFFFFFFFFF-1));
+    __ cmpq(result, Immediate(-0x1FFFFFFFFFFFFFLL - 1));
     __ j(EQUAL, overflow);  // The most negative 54-bit int is also disallowed.
   }
 }
 
 
 static void EmitSmiShiftLeft(FlowGraphCompiler* compiler,
                              BinarySmiOpInstr* shift_left) {
   const bool is_truncating = shift_left->is_truncating();
   const LocationSummary& locs = *shift_left->locs();
   Register left = locs.in(0).reg();
@@ skipping 2376 matching lines @@
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64