Update IWYU fix_includes.py

IWYU was updated to 0.13 in thirdparty along with the LLVM update to
9.0. This commit "rebases" our custom changes to fix_includes.py on top
of upstream 0.13's fix_includes.py.

Change-Id: I967382f79fc0172b79b5d42347e9d9c61ed1ea1e
Reviewed-on: http://gerrit.cloudera.org:8080/14853
Reviewed-by: Adar Dembo <adar@cloudera.com>
Tested-by: Kudu Jenkins
Reviewed-by: Alexey Serbin <aserbin@cloudera.com>
2 files changed