Use ICUDeleter to encode ucnv_close call into type of deleter of std::unique_ptr
Created attachment 423703 [details] Patch
Created attachment 423705 [details] Patch
<rdar://problem/75877561>
Committed r275084: <https://commits.webkit.org/r275084> All reviewed patches have been landed. Closing bug and clearing flags on attachment 423705 [details].