message: Update path to passing tests in CONTRIBUTING.md examples
  This appears to be renamed from `tests/run-pass` to `tests/pass`.
diff: @@ -60,8 +60,8 @@ generation and linking obviously will have no effect) [and more][miri-flags].
  For example, you can (cross-)run the driver on a particular file by doing
  ```sh
  -./miri run tests/run-pass/format.rs
  -./miri run tests/run-pass/hello.rs --target i686-unknown-linux-gnu
  +./miri run tests/pass/format.rs
  +./miri run tests/pass/hello.rs --target i686-unknown-linux-gnu
  ```
  and you can (cross-)run the entire test suite using:
  @@ -79,7 +79,7 @@ You can get a trace of which MIR statements are being executed by setting the
  `MIRI_LOG` environment variable. For example:
  ```sh
  -MIRI_LOG=info ./miri run tests/run-pass/vec.rs
  +MIRI_LOG=info ./miri run tests/pass/vec.rs
  ```
  Setting `MIRI_LOG` like this will configure logging for Miri itself as well as
  @@ -88,7 +88,7 @@ can also do more targeted configuration, e.g. the following helps debug the
  stacked borrows implementation:
  ```sh
  -MIRI_LOG=rustc_mir::interpret=info,miri::stacked_borrows ./miri run tests/run-pass/vec.rs
  +MIRI_LOG=rustc_mir::interpret=info,miri::stacked_borrows ./miri run tests/pass/vec.rs
  ```
  In addition, you can set `MIRI_BACKTRACE=1` to get a backtrace of where an
  