error: tuple type element is not a type (found `int_literal`); a tuple used as a type must list only types, e.g. `(i32, i32)`
  --> examples/1116-diagnostics-tuple-type-nontype-element-rejected.sx:11:55
   |
11 |     print("bad tuple type size = {}\n", size_of((i32, 1)));
   |                                                       ^
