[clang] Adopt new FileManager error-returning APIs

Update the callers of FileManager::getFile and FileManager::getDirectory to handle the new llvm::ErrorOr-returning methods.

Signed-off-by: Harlan Haskins <harlan@apple.com>

git-svn-id: svn://svn.chromium.org/llvm-project/cfe/trunk/tools/clang-format@367616 0b72dbe1-c17f-4bc7-b9db-2b4152be0356
1 file changed