Add a LLVMWriteBitcodeToFD that exposes the raw_fd_ostream options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97858 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/BitWriter.cpp b/lib/Bitcode/Writer/BitWriter.cpp
index 6119c42..4288422 100644
--- a/lib/Bitcode/Writer/BitWriter.cpp
+++ b/lib/Bitcode/Writer/BitWriter.cpp
@@ -27,9 +27,14 @@
   return 0;
 }
 
-int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
-  raw_fd_ostream OS(FileHandle, true);
+int LLVMWriteBitcodeToFD(LLVMModuleRef M, int FD, int ShouldClose,
+                         int Unbuffered) {
+  raw_fd_ostream OS(FD, ShouldClose, Unbuffered);
   
   WriteBitcodeToFile(unwrap(M), OS);
   return 0;
 }
+
+int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
+  return LLVMWriteBitcodeToFD(M, FileHandle, true, false);
+}