[clang-tidy] Widen anonymous namespace.
[clang-tidy] Widen anonymous namespace.

The matchers in this check are prone to create ODR violations otherwise.
No functionality change.

git-svn-id: a34e9779ed74578ad5922b3306b3d80a0c825546@324083 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