Rename HandleCycleError to CycleErrorHandling
#151520
Merged
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In #101303, the
handle_cycle_errorfield was changed from a macro-generated closure to a macro-selected enum variant. But it was not renamed to reflect the fact that it now holds data, not code.Renaming the field and its associated enum to
cycle_error_handling: CycleErrorHandlingshould make the relevant code less confusing to read.This PR also moves the enum out of
rustc_query_system::error, where it was easily confused with diagnostic structs.There should be no change to compiler behaviour.