Unify fuzzing and testing code

dev-test/fuzz_targets/luajit_translate.rs

@@ -0,0 +1,18 @@
+#![no_main]
+
+use wasm_ast::builder::TypeInfo;
+use wasm_smith::Module;
+
+// We are not interested in parity_wasm errors.
+libfuzzer_sys::fuzz_target!(|module: Module| {
+	let data = module.to_bytes();
+	let wasm = match parity_wasm::deserialize_buffer(&data) {
+		Ok(v) => v,
+		Err(_) => return,
+	};
+
+	let type_info = TypeInfo::from_module(&wasm);
+	let sink = &mut std::io::sink();
+
+	codegen_luajit::translate(&wasm, &type_info, sink).expect("LuaJIT should succeed");
+});

dev-test/fuzz_targets/luau_translate.rs

@@ -0,0 +1,18 @@
+#![no_main]
+
+use wasm_ast::builder::TypeInfo;
+use wasm_smith::Module;
+
+// We are not interested in parity_wasm errors.
+libfuzzer_sys::fuzz_target!(|module: Module| {
+	let data = module.to_bytes();
+	let wasm = match parity_wasm::deserialize_buffer(&data) {
+		Ok(v) => v,
+		Err(_) => return,
+	};
+
+	let type_info = TypeInfo::from_module(&wasm);
+	let sink = &mut std::io::sink();
+
+	codegen_luau::translate(&wasm, &type_info, sink).expect("Luau should succeed");
+});