llvm-project

281f3236 - [UpdateTestChecks] Fix Windows error when piping outputs (#237636)

[UpdateTestChecks] Fix Windows error when piping outputs (#237636) On Windows, `update_cc_test_checks` fails to update tests that pipe outputs since opening an already open `NamedTemporaryFile` errors when it's set to automatically delete. This PR fixes this by closing the file after initially writing to it and then manually removing it.