In cases where .dwo/.dwp files are guaranteed to be available, skipping
the extra online (in the .o file) inline info can save a substantial
amount of space - see the original r221306 for more details there.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@279651 91177308-0d34-0410-b5e6-96231b3b80d8