v8/test/fuzzer/wasm_async
..
README.md
regression-761784.wasm
valid.wasm

All files in this directory are used by the trybots to check that the fuzzer executes correctly, see https://github.com/v8/v8/blob/master/test/fuzzer/README.md. There should be at least one file in this directory, e.g. this README file.