reparse-expr-issue-139495.stderr

error: expected expression, found keyword `extern`
  --> $DIR/reparse-expr-issue-139495.rs:2:22
   |
LL |   ($abi : expr) => { extern $abi }
   |                      ^^^^^^ expected expression
...
LL |     m!(-2)
   |     ------ in this macro invocation
   |
   = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 1 previous error