1eed27f374
Change env var used for testing Clippy This changes the variable used for testing Clippy in the internal test suite: ``` CLIPPY_TESTS -> __CLIPPY_INTERNAL_TESTS ``` `CLIPPY_TESTS` is understandably used in environments of Clippy users, so we shouldn't use it in our test suite. changelog: Fix oversight which caused Clippy to lint deps in some environments. Once again fixes https://github.com/rust-lang/rust-clippy/issues/3874