vlib/v/checker/tests/ptr_slice.vv:9:14: error: type `&Foo` does not support slicing
    7 | 
    8 | fn main() {
    9 |     fs := jeje()[1..]
      |                 ~~~~~
   10 |     println(fs)
   11 |     vs := byteptr(0)[..3]
vlib/v/checker/tests/ptr_slice.vv:11:18: error: type `byteptr` does not support slicing
    9 |     fs := jeje()[1..]
   10 |     println(fs)
   11 |     vs := byteptr(0)[..3]
      |                     ~~~~~
   12 |     println(vs)
   13 | }