test-serialize/Bug3628 is expected to fail, not crash.

test/cctest/test-serialize.cc

Index: test/cctest/test-serialize.cc
diff --git a/test/cctest/test-serialize.cc b/test/cctest/test-serialize.cc
index 289d0dc9832fa66d32cdb0cc024d9d518a8ca7df..5dd11700021c3f1d77d9eaac8a675a41bfa6baad 100644
--- a/test/cctest/test-serialize.cc
+++ b/test/cctest/test-serialize.cc
@@ -1242,6 +1242,7 @@ TEST(Bug3628) {
     v8::Local<v8::UnboundScript> script = v8::ScriptCompiler::CompileUnbound(
         isolate1, &source, v8::ScriptCompiler::kProduceCodeCache);
     const v8::ScriptCompiler::CachedData* data = source.GetCachedData();
+    CHECK(data);
     // Persist cached data.
     uint8_t* buffer = NewArray<uint8_t>(data->length);
     MemCopy(buffer, data->data, data->length);