Fix build break on Mac.

BUG=
TEST=

Review URL: http://codereview.chromium.org/6816012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7535 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/simulator-arm.cc

@@ -1618,7 +1618,7 @@ void Simulator::HandleVList(Instruction* instr) {
       address += 2;
     }
   }
-  ASSERT_EQ(((intptr_t)address) - operand_size, end_address);
+  ASSERT(reinterpret_cast<intptr_t>(address) - operand_size == end_address);
 }