proc-macro-error2 2.0.1

Almost drop-in replacement to panics in proc-macros
Documentation
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error: Option::expect_or_abort() test
 --> tests/ui/option_ext.rs:3:1
  |
3 | option_ext!(one, two);
  | ^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the macro `option_ext` (in Nightly builds, run with -Z macro-backtrace for more info)