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Zalathar
a5181d2fd6
Incremental revisions beginning with `rfail` would cause the incremental test runner to build the test program, expecting success, and then run the test program, expecting failure. Expecting incremental tests to fail at runtime is of questionable utility, because in almost all cases an equivalent test program can be made to succeed at runtime instead. Removing `rfail` support is a small step towards cleaning up compiletest's incremental test runner, and its overall handling of pass/fail expectations. There was one existing regression test using `rfail` revisions: `tests/incremental/issue-80691-bad-eval-cache.rs`. The test code is complex, and reverting the fix in RUST-83220 does not actually cause the test to fail, suggesting that it is no longer a useful regression test. This commit therefore deletes that test.