[TIMOB-23518] iOS: Cannot build with Xcode 8.0

[cheekiatng]

JIRA: https://jira.appcelerator.org/browse/TIMOB-23518

[cb1kenobi]

I thought the Intermediates had to go inside the derived data path?

[cheekiatng]

@cb1kenobi I considered that, and tried it, but surprisingly they don't sit well together. The build fails.
everything in DerivedData has to be separate from the Intermediate, Products, PrecompiledHeaders directories. Through further investigation, it seems derivedData is supposed to be separate. Native Xcode projects have their DerivedData here:
/Library/Developer/Xcode/DerivedData
So it is ok for https://github.com/appcelerator/titanium_mobile/blob/master/iphone/cli/commands/_build.js#L5939 and the following 2 lines to remain where they are. In fact, if you comment out these 3 lines, by default the build folder is still generated in the same place. But let's keep them for now.

[cb1kenobi]

Tested and works! Love it! APPROVED!!!