Always prefer iphone sdk when running sourcekitten.
Always prefer iphone sdk when running sourcekitten.

Reviewers: O2 Material Motion, markwei

Reviewed By: O2 Material Motion, markwei

Tags: #material_motion

Differential Revision: http://codereview.cc/D1877

material-motion/apidiff,material-motion/apidiff,material-motion/apidiff