Fix Clang-tidy modernize-deprecated-headers warnings in some files; other minor fixes.

Differential revision: http://reviews.llvm.org/D18469


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264598 91177308-0d34-0410-b5e6-96231b3b80d8
12 files changed