swift234

[sil-combine] Disable unchecked_take_enum_data_addr promotion to unchecked_enum_data when the enum type is address only.

An enum is address only if any of its cases are address only. The
mistake I made here was that I assumed if one of the enum's case
payloads was loadable then the enum was loadable.

<rdar://problem/16880697>

This change was approved by Nadav Rotem.

Swift SVN r18036