[test] Test expectations in cctest should use CHECK and not DCHECK.

test/cctest/test-weaksets.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 44 matching lines @@
   }
   return weakset;
 }
 
 static int NumberOfWeakCalls = 0;
 static void WeakPointerCallback(
     const v8::WeakCallbackData<v8::Value, void>& data) {
   std::pair<v8::Persistent<v8::Value>*, int>* p =
       reinterpret_cast<std::pair<v8::Persistent<v8::Value>*, int>*>(
           data.GetParameter());
-  DCHECK_EQ(1234, p->second);
+  CHECK_EQ(1234, p->second);
   NumberOfWeakCalls++;
   p->first->Reset();
 }
 
 
 TEST(WeakSet_Weakness) {
   FLAG_incremental_marking = false;
   LocalContext context;
   Isolate* isolate = GetIsolateFrom(&context);
   Factory* factory = isolate->factory();
@@ skipping 166 matching lines @@
     JSWeakCollection::Set(weakset, keys[i], smi, hash);
   }
 
   // Force compacting garbage collection. The subsequent collections are used
   // to verify that key references were actually updated.
   CHECK(FLAG_always_compact);
   heap->CollectAllGarbage();
   heap->CollectAllGarbage();
   heap->CollectAllGarbage();
 }