fix various typos in the codebase

Author: jqnatividad

src/state/util.rs

@@ -23,7 +23,7 @@ impl Drop for StateGuard<'_> {
 }
 
 // An optimized version of `callback_error` that does not allocate `WrappedFailure` userdata
-// and instead reuses unsed values from previous calls (or allocates new).
+// and instead reuses unused values from previous calls (or allocates new).
 pub(super) unsafe fn callback_error_ext<F, R>(
     state: *mut ffi::lua_State,
     mut extra: *mut ExtraData,

tests/function.rs

@@ -214,7 +214,7 @@ fn test_function_dump() -> Result<()> {
 
 #[cfg(feature = "luau")]
 #[test]
-fn test_finction_coverage() -> Result<()> {
+fn test_function_coverage() -> Result<()> {
     let lua = Lua::new();
 
     lua.set_compiler(mlua::Compiler::default().set_coverage_level(1));

tests/scope.rs

@@ -318,7 +318,7 @@ fn test_scope_userdata_drop() -> Result<()> {
 
     let ud = lua.globals().get::<AnyUserData>("ud")?;
     match ud.borrow_scoped::<MyUserData, _>(|_| Ok::<_, Error>(())) {
-        Ok(_) => panic!("succesfull borrow for destructed userdata"),
+        Ok(_) => panic!("successful borrow for destructed userdata"),
         Err(Error::UserDataDestructed) => {}
         Err(err) => panic!("improper borrow error for destructed userdata: {err:?}"),
     }

tests/tests.rs

@@ -322,7 +322,7 @@ fn test_error() -> Result<()> {
     let return_string_error = globals.get::<Function>("return_string_error")?;
     assert!(return_string_error.call::<Error>(()).is_ok());
 
-    match lua.load("if youre happy and you know it syntax error").exec() {
+    match lua.load("if you're happy and you know it syntax error").exec() {
         Err(Error::SyntaxError {
             incomplete_input: false,
             ..