pass -o to run-tests.py to keep generated output
pass -o to run-tests.py to keep generated output

* also cleanup generated filenames (no longer end with "(roundtrip)")
* also remove unused function AsList

citisolo/wabt,WebAssembly/sexpr-wasm-prototype,WebAssembly/wabt,citisolo/wabt,citisolo/wabt,WebAssembly/wabt,WebAssembly/wabt,WebAssembly/sexpr-wasm-prototype,WebAssembly/sexpr-wasm-prototype,WebAssembly/sexpr-wasm-prototype,WebAssembly/wabt,WebAssembly/wabt,citisolo/wabt,citisolo/wabt,WebAssembly/sexpr-wasm-prototype,citisolo/wabt,WebAssembly/sexpr-wasm-prototype