Converted to using llvm streams instead of <iostream>s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31992 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 0e75bfb..d178a6f 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -475,7 +475,7 @@
   llvm_cerr << *this << "\n";
 }
 
-void LiveInterval::print(llvm_ostream &OS, const MRegisterInfo *MRI) const {
+void LiveInterval::print(llvm_ostream OS, const MRegisterInfo *MRI) const {
   if (MRI && MRegisterInfo::isPhysicalRegister(reg))
     OS << MRI->getName(reg);
   else