swift

4035b73b - [6.0][Runtime] Add weak check to use of _dyld_find_pointer_hash_table_entry.

[6.0][Runtime] Add weak check to use of _dyld_find_pointer_hash_table_entry. Needed to avoid availability errors in some configurations. rdar://127621414 (cherry picked from commit ae71658c6a7c467e934b87907363387d8ae04432)