Add __has_feature(cxx_reference_qualified_functions); update tests and
documentation.

llvm-svn: 124322
3 files changed
tree: e81061b5ea433e9e9b2f28d62e24eae6c4895e56
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/