| impl ! {} // OK | |
| impl ! where u8: Copy {} // OK | |
| impl Trait Type {} //~ ERROR missing `for` in a trait impl | |
| impl Trait .. {} //~ ERROR missing `for` in a trait impl | |
| impl ?Sized for Type {} //~ ERROR expected a trait, found type | |
| impl ?Sized for .. {} //~ ERROR expected a trait, found type | |
| default unsafe FAIL //~ ERROR expected `impl`, found `FAIL` |