Objective-C. Consider blocks for designated initializer
warnings (warning or lack there of) as well since
blocks are another pattern for envoking other
designated initializers. // rdar://16323233


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@204081 91177308-0d34-0410-b5e6-96231b3b80d8