error: free constant item without body
  --> $DIR/const_arg_trivial_macro_expansion-2.rs:12:1
   |
LL | / const _: A<
...  |
LL | |     },
LL | | >;
   | |  ^ help: provide a definition for the constant: `= <expr>;`
   | |__|
   |

error[E0425]: cannot find type `A` in this scope
  --> $DIR/const_arg_trivial_macro_expansion-2.rs:12:10
   |
LL | const _: A<
   |          ^ not found in this scope

error[E0425]: cannot find value `x` in this scope
  --> $DIR/const_arg_trivial_macro_expansion-2.rs:7:9
   |
LL |         x
   |         ^ not found in this scope
...
LL |         y! { test.tou8 }
   |         ---------------- in this macro invocation
   |
   = note: this error originates in the macro `y` (in Nightly builds, run with -Z macro-backtrace for more info)
help: you might be missing a const parameter
   |
LL | const _<const x: /* Type */>: A<
   |        +++++++++++++++++++++

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0425`.
