Depends on D104982.
fixes inclusion issues that weren't being replicated locally
The libc++abi test diff is literally + #include <algorithm>\n, but Arcanist said the following and forced it to be treated as a binary:
Diff for 'libcxxabi/test/test_demangle.pass.cpp' with context is 5,403,317 bytes in length. Generally, source changes should not be this large. If the file is not a text file, you can mark it 'binary'. Mark this file as 'binary' and continue?