Refactor Luau codegen to use wasmparser

dev-test/fuzz_targets/luau_translate.rs

@@ -1,16 +1,14 @@
 #![no_main]
 
-use wasm_smith::Module;
+use wasm_ast::module::Module;
+use wasm_smith::Module as RngModule;
 
 // We are not interested in parity_wasm errors.
-libfuzzer_sys::fuzz_target!(|module: Module| {
+libfuzzer_sys::fuzz_target!(|module: RngModule| {
 	let data = module.to_bytes();
-	let wasm = match parity_wasm::deserialize_buffer(&data) {
-		Ok(v) => v,
-		Err(_) => return,
-	};
+	let wasm = Module::from_data(&data);
 
 	let sink = &mut std::io::sink();
 
-	codegen_luau::from_module_untyped(&wasm, sink).expect("Luau should succeed");
+	codegen_luau::from_module_untyped(&wasm, sink).expect("LuaJIT should succeed");
 });

dev-test/tests/luau_translate.rs

@@ -3,8 +3,7 @@ use std::{
 	path::PathBuf,
 };
 
-use parity_wasm::elements::Module;
-use wasm_ast::builder::TypeInfo;
+use wasm_ast::module::{Module, TypeInfo};
 use wast::{
 	core::{Expression, Instruction},
 	AssertExpression, WastExecute, WastInvoke,