Simplify clang-format-diff.py using new clang-format options.

clang-format's -lines parameter makes this significantly easier.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190935 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC migrator: placing another check for
'deprecated' container before doing the 'instancetype'
inference.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190943 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC migrator: Infer property in the presense
of methods annotated with attributes. 
// rdar://14987909


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190947 91177308-0d34-0410-b5e6-96231b3b80d8