Lowercase the tag name to match the rest of dwarf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153691 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DIBuilder.cpp b/lib/Analysis/DIBuilder.cpp
index ddf57f8..4dc8f6a 100644
--- a/lib/Analysis/DIBuilder.cpp
+++ b/lib/Analysis/DIBuilder.cpp
@@ -392,7 +392,7 @@
                                              unsigned PropertyAttributes,
 					     DIType Ty) {
   Value *Elts[] = {
-    GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_Property),
+    GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_property),
     MDString::get(VMContext, Name),
     File,
     ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),