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

llvm-svn: 32298
diff --git a/llvm/lib/Analysis/ConstantRange.cpp b/llvm/lib/Analysis/ConstantRange.cpp
index 1f1a1b57..2c21586 100644
--- a/llvm/lib/Analysis/ConstantRange.cpp
+++ b/llvm/lib/Analysis/ConstantRange.cpp
@@ -370,5 +370,5 @@
 /// dump - Allow printing from a debugger easily...
 ///
 void ConstantRange::dump() const {
-  print(llvm_cerr);
+  print(cerr);
 }