Chris Bracken f4f81e9ac7 Require Xcode >= 8.0 for iOS development (#10932)
This allows us to take advantage of improved command-line tooling (e.g.,
improvements in device listing in Instruments). Now that the engine is
built with Xcode 8 and the framework is tested against Xcode 8, this
reduces the set of configurations we need to support to allow us to
focus on the supported ones: Xcode 8 and Xcode 9.
2017-06-23 14:07:01 -07:00
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