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8e45935824
Verify-uselistorder wants to take some input IR and verify that the uselist order is stable after roundtripping to bitcode and assembly. This is disrupted if the file is converted between the new and old debug info formats after parsing - while there's no functional difference, the change to the in-memory representation of the IR modifies the uselist. This patch changes verify-uselistorder to not convert input files between debug info formats by default, preventing changes from being made to the file being checked. In addition, this patch makes it so that when we _do_ print IR in the new debug info format to bitcode or assembly, we delete any lingering debug intrinsic declarations, ensuring that we don't write uselist entries for them.