now the FileManager has a FileSystemOpts ivar, stop threading
FileSystemOpts through a ton of apis, simplifying a lot of code.
This also fixes a latent bug in ASTUnit where it would invoke
methods on FileManager without creating one in some code paths
in cindextext.

llvm-svn: 120010
28 files changed
tree: 6ad37aa5c3f6564eb01bc7a75e0749e9b7829204
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/