vlib/v/checker/tests/assign_sumtype_err.vv:13:9: error: cannot assign to `decl`: expected `Decl`, not `Stmt`
   11 |     stmt := Stmt(Decl{})
   12 |     mut decl := Decl{}
   13 |     decl = stmt
      |            ~~~~
   14 |     _ = decl
   15 | }