error: arbitrary expressions aren't allowed in patterns
  --> $DIR/issue-92074-macro-ice.rs:18:25
   |
LL |     () => { force_expr!(Vec::new()) }
   |                         ^^^^^^^^^^
...
LL |     assert!(matches!(x, En::A(make_vec!())));
   |                               ----------- in this macro invocation
   |
   = note: this error originates in the macro `make_vec` (in Nightly builds, run with -Z macro-backtrace for more info)

error: arbitrary expressions aren't allowed in patterns
  --> $DIR/issue-92074-macro-ice.rs:22:24
   |
LL |     () => { force_pat!(get_usize(), get_usize()) }
   |                        ^^^^^^^^^^^
...
LL |     assert!(matches!(5, make_pat!()));
   |                         ----------- in this macro invocation
   |
   = note: this error originates in the macro `make_pat` (in Nightly builds, run with -Z macro-backtrace for more info)

error: arbitrary expressions aren't allowed in patterns
  --> $DIR/issue-92074-macro-ice.rs:22:37
   |
LL |     () => { force_pat!(get_usize(), get_usize()) }
   |                                     ^^^^^^^^^^^
...
LL |     assert!(matches!(5, make_pat!()));
   |                         ----------- in this macro invocation
   |
   = note: this error originates in the macro `make_pat` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 3 previous errors