Skip heap verify on 64-bit with an app snapshot

runtime/vm/heap.cc

 // Copyright (c) 2012, 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/heap.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/flags.h"
 #include "vm/isolate.h"
@@ skipping 544 matching lines @@
     // VM isolate heap is premarked.
     VerifyObjectVisitor vm_object_visitor(
         isolate(), allocated_set, kRequireMarked);
     vm_isolate->heap()->VisitObjects(&vm_object_visitor);
   }
   return allocated_set;
 }
 
 
 bool Heap::Verify(MarkExpectation mark_expectation) const {
+// TODO(27373): Remove this test when the issue is fixed.
+#if defined(ARCH_IS_64_BIT)
+  if ((Dart::snapshot_kind() == Snapshot::kAppNoJIT) ||
+      (Dart::snapshot_kind() == Snapshot::kAppWithJIT)) {
+    return true;
+  }
+#endif
   HeapIterationScope heap_iteration_scope;
   return VerifyGC(mark_expectation);
 }
 
 
 bool Heap::VerifyGC(MarkExpectation mark_expectation) const {
   ObjectSet* allocated_set = CreateAllocatedObjectSet(mark_expectation);
   VerifyPointersVisitor visitor(isolate(), allocated_set);
   VisitObjectPointers(&visitor);
   delete allocated_set;
@@ skipping 296 matching lines @@
   Dart::vm_isolate()->heap()->WriteProtect(false);
 }
 
 
 WritableVMIsolateScope::~WritableVMIsolateScope() {
   ASSERT(Dart::vm_isolate()->heap()->UsedInWords(Heap::kNew) == 0);
   Dart::vm_isolate()->heap()->WriteProtect(true);
 }
 
 }  // namespace dart