first step to remove unsafe handles

test/cctest/test-symbols.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 
 // Check that we can traverse very deep stacks of ConsStrings using
 // StringCharacterStram.  Check that Get(int) works on very deep stacks
 // of ConsStrings.  These operations may not be very fast, but they
 // should be possible without getting errors due to too deep recursion.
 
+// TODO(dcarney): remove
+#define V8_ALLOW_ACCESS_TO_PERSISTENT_IMPLICIT
+#define V8_ALLOW_ACCESS_TO_PERSISTENT_ARROW
+
 #include "v8.h"
 
 #include "cctest.h"
 #include "objects.h"
 
 using namespace v8::internal;
 
 
 TEST(Create) {
   CcTest::InitializeVM();
@@ skipping 23 matching lines @@
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
 
   // All symbols should be distinct.
   for (int i = 0; i < kNumSymbols; ++i) {
     CHECK(symbols[i]->SameValue(*symbols[i]));
     for (int j = i + 1; j < kNumSymbols; ++j) {
       CHECK(!symbols[i]->SameValue(*symbols[j]));
     }
   }
 }