344     enum Test {  in concurrent_type_registry_modifications()  enum
356     const TESTS: &'static [Test] = &[  in concurrent_type_registry_modifications()
357         Test::Func(|engine| FuncType::new(engine, [], [])),  in concurrent_type_registry_modifications()
358         Test::Func(|engine| FuncType::new(engine, [], [ValType::I32])),  in concurrent_type_registry_modifications()
359         Test::Func(|engine| FuncType::new(engine, [ValType::I32], [])),  in concurrent_type_registry_modifications()
360         Test::Struct(|engine| StructType::new(engine, []).unwrap()),  in concurrent_type_registry_modifications()
361         Test::Array(|engine| {  in concurrent_type_registry_modifications()
364         Test::Array(|engine| {  in concurrent_type_registry_modifications()
367         Test::Module(  in concurrent_type_registry_modifications()
393         Test::Module(  in concurrent_type_registry_modifications()
404         Test::Module(  in concurrent_type_registry_modifications()
419         Test::Module(  in concurrent_type_registry_modifications()
441                         Some(Test::Module(wat)) => {  in concurrent_type_registry_modifications()
444                         Some(Test::Func(ctor)) => {  in concurrent_type_registry_modifications()
447                         Some(Test::Struct(ctor)) => {  in concurrent_type_registry_modifications()
450                         Some(Test::Array(ctor)) => {  in concurrent_type_registry_modifications()