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.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120010 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
index 9ef1ca6..d18baaa 100644
--- a/lib/Frontend/FrontendActions.cpp
+++ b/lib/Frontend/FrontendActions.cpp
@@ -209,8 +209,7 @@
   
   CompilerInstance &CI = getCompilerInstance();
   llvm::MemoryBuffer *Buffer
-      = CI.getFileManager().getBufferForFile(getCurrentFile(),
-                                             CI.getFileSystemOpts());
+      = CI.getFileManager().getBufferForFile(getCurrentFile());
   if (Buffer) {
     unsigned Preamble = Lexer::ComputePreamble(Buffer).first;
     llvm::outs().write(Buffer->getBufferStart(), Preamble);