Fix Clang-tidy modernize-use-override warning in unittests/clang-tidy/IncludeInserterTest.cpp; other minor fixes.
Fix Clang-tidy modernize-use-override warning in unittests/clang-tidy/IncludeInserterTest.cpp; other minor fixes.

Differential revision: http://reviews.llvm.org/D16566


git-svn-id: a34e9779ed74578ad5922b3306b3d80a0c825546@258870 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra