clang/test/Index/comment-to-html-xml-conversion.cpp: Mark this as XFAIL:valgrind, for now. Working in progress.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173121 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Index/comment-to-html-xml-conversion.cpp b/test/Index/comment-to-html-xml-conversion.cpp
index 0577eb0..c6786f8 100644
--- a/test/Index/comment-to-html-xml-conversion.cpp
+++ b/test/Index/comment-to-html-xml-conversion.cpp
@@ -17,6 +17,8 @@
 // RUN: FileCheck %s < %t/out.c-index-direct
 // RUN: FileCheck %s < %t/out.c-index-pch
 
+// XFAIL: valgrind
+
 #ifndef HEADER
 #define HEADER