Rename MDNode.h header. It defines MDnode and other metadata classes.
New name is Metadata.h.

llvm-svn: 77370
diff --git a/llvm/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp b/llvm/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
index 7569eee..a4eba87 100644
--- a/llvm/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
+++ b/llvm/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
@@ -19,7 +19,7 @@
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Module.h"
-#include "llvm/MDNode.h"
+#include "llvm/Metadata.h"
 #include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/CodeGen/DwarfWriter.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"