Fix SIMARM64 and SIMMIPS builds:

runtime/vm/simulator_mips.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 <setjmp.h>
 #include <stdlib.h>
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_MIPS)
 
@@ skipping 939 matching lines @@
     return;
   }
   UnalignedAccess("double-precision floating point write", addr, instr);
 }
 
 
 // Synchronization primitives support.
 void Simulator::SetExclusiveAccess(uword addr) {
   Isolate* isolate = Isolate::Current();
   ASSERT(isolate != NULL);
-  ASSERT(exclusive_access_lock_->Owner() == isolate);
+  DEBUG_ASSERT(exclusive_access_lock_->Owner() == isolate);
   int i = 0;
   // Find an entry for this isolate in the exclusive access state.
   while ((i < kNumAddressTags) &&
          (exclusive_access_state_[i].isolate != isolate)) {
     i++;
   }
   // Round-robin replacement of previously used entries.
   if (i == kNumAddressTags) {
     i = next_address_tag_;
     if (++next_address_tag_ == kNumAddressTags) {
       next_address_tag_ = 0;
     }
     exclusive_access_state_[i].isolate = isolate;
   }
   // Remember the address being reserved.
   exclusive_access_state_[i].addr = addr;
 }
 
 
 bool Simulator::HasExclusiveAccessAndOpen(uword addr) {
   Isolate* isolate = Isolate::Current();
   ASSERT(isolate != NULL);
   ASSERT(addr != 0);
-  ASSERT(exclusive_access_lock_->Owner() == isolate);
+  DEBUG_ASSERT(exclusive_access_lock_->Owner() == isolate);
   bool result = false;
   for (int i = 0; i < kNumAddressTags; i++) {
     if (exclusive_access_state_[i].isolate == isolate) {
       // Check whether the current isolates address reservation matches.
       if (exclusive_access_state_[i].addr == addr) {
         result = true;
       }
       exclusive_access_state_[i].addr = 0;
     } else if (exclusive_access_state_[i].addr == addr) {
       // Other isolates with matching address lose their reservations.
@@ skipping 1354 matching lines @@
   set_register(kExceptionObjectReg, bit_cast<int32_t>(raw_exception));
   set_register(kStackTraceObjectReg, bit_cast<int32_t>(raw_stacktrace));
   buf->Longjmp();
 }
 
 }  // namespace dart
 
 #endif  // !defined(HOST_ARCH_MIPS)
 
 #endif  // defined TARGET_ARCH_MIPS