NFC, add a missing stdlib include for the use of abort
authorAlex Lorenz <arphaman@gmail.com>
Tue, 29 Sep 2020 15:48:07 +0000 (08:48 -0700)
committerAlex Lorenz <arphaman@gmail.com>
Tue, 29 Sep 2020 15:50:51 +0000 (08:50 -0700)
commit119274748bce6d1248aa57cb55d79bfeae8a2f8e
treeadafb804cfed83ee1e9f7b90f2dcbd5b44070dd7
parenta9f63d22fafb0d7de768efc6b7447f8e7f6bb220
NFC, add a missing stdlib include for the use of abort

The FatalErrorHandler.cpp file uses 'abort', but doesn't include
'stdlib.h'. This causes a build error when modules are used in clang.
clang/tools/libclang/FatalErrorHandler.cpp