Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
now cerr, cout, and NullStream resp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Debug.cpp b/lib/Support/Debug.cpp
index 9cea94c..949e3d9 100644
--- a/lib/Support/Debug.cpp
+++ b/lib/Support/Debug.cpp
@@ -68,9 +68,9 @@
 // places the std::c* I/O streams into one .cpp file and relieves the whole
 // program from having to have hundreds of static c'tor/d'tors for them.
 // 
-llvm_ostream llvm::getErrorOutputStream(const char *DebugType) {
+OStream llvm::getErrorOutputStream(const char *DebugType) {
   if (DebugFlag && isCurrentDebugType(DebugType))
-    return llvm_cerr;
+    return cerr;
   else
-    return llvm_null;
+    return NullStream;
 }