[Support] Merge toLower / toUpper implementations

Merge the ones from StringRef and StringExtras.

llvm-svn: 319171

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/Support/StringExtras.cpp b/llvm/lib/Support/StringExtras.cpp
index b2f42df..21157a1 100644
--- a/llvm/lib/Support/StringExtras.cpp
+++ b/llvm/lib/Support/StringExtras.cpp
@@ -13,6 +13,7 @@
 
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 /// StrInStrNoCase - Portable version of strcasestr.  Locates the first
@@ -56,3 +57,8 @@ void llvm::SplitString(StringRef Source,
     S = getToken(S.second, Delimiters);
   }
 }
+
+void llvm::printLowerCase(StringRef String, raw_ostream &Out) {
+  for (const char C : String)
+    Out << toLower(C);
+}