Added an automatic cast to "std::ostream*" etc. from OStream. We then can

rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32636 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/Streams.cpp

@@ -16,7 +16,7 @@
 #include <iostream>
 using namespace llvm;
 
-OStream llvm::NullStream;
+OStream llvm::cnull;
 OStream llvm::cout(std::cout);
 OStream llvm::cerr(std::cerr);
 IStream llvm::cin(std::cin);