Lift builtin-include-path logic out of ASTUnit::LoadFromCommandLine and fix CIndex to pass in the right directory (previously it was using the path to the main executable, which generally is wrong).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91238 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed