Move BinaryRef to a new include/llvm/Object/YAML.h file.

It will be used for ELF dumping too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183287 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Object/YAML.cpp b/lib/Object/YAML.cpp
new file mode 100644
index 0000000..36b1997
--- /dev/null
+++ b/lib/Object/YAML.cpp
@@ -0,0 +1,34 @@
+//===- YAML.cpp - YAMLIO utilities for object files -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines utility classes for handling the YAML representation of
+// object files.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/YAML.h"
+
+using namespace llvm;
+
+void yaml::ScalarTraits<object::yaml::BinaryRef>::output(
+    const object::yaml::BinaryRef &Val, void *, llvm::raw_ostream &Out) {
+  ArrayRef<uint8_t> Data = Val.getBinary();
+  for (ArrayRef<uint8_t>::iterator I = Data.begin(), E = Data.end(); I != E;
+       ++I) {
+    uint8_t Byte = *I;
+    Out << hexdigit(Byte >> 4);
+    Out << hexdigit(Byte & 0xf);
+  }
+}
+
+StringRef yaml::ScalarTraits<object::yaml::BinaryRef>::input(
+    StringRef Scalar, void *, object::yaml::BinaryRef &Val) {
+  Val = object::yaml::BinaryRef(Scalar);
+  return StringRef();
+}