Doug Gregor 3a8a652370 Drive a wedge between array upcasts and array bridged upcasts. ...

Previously, we were relying on overly-general subtyping to determine
when we could perform an array upcast, which pushed some non-verbatim
bridging through that path. Instead, restrict array upcasts to classes
and ObjC existentials, and use bridging casts for the other cases.

Swift SVN r18291

2014-05-18 00:42:01 +00:00

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