julia

a4e02cae - optimizations: improve `Core._apply_iterate` call conversion in #59548 (#59601)

optimizations: improve `Core._apply_iterate` call conversion in #59548 (#59601) Further improves the implementation from JuliaLang/julia#59548. Specifically, uses `widenconst` to enable conversion of `tuple` calls that have become `PartialStruct`, and removes incorrect comments and unused arguments. Also adds some Julia-IR level tests.