V8TRYCATCH        638 Source/bindings/v8/V8Binding.h     V8TRYCATCH(v8::Local<v8::Value>, lengthValue, object->Get(lengthSymbol));
V8TRYCATCH        645 Source/bindings/v8/V8Binding.h     V8TRYCATCH(uint32_t, sequenceLength, lengthValue->Int32Value());