Add a release note for Objective-C related result types

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145252 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index b775f4e..b41e2eb 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -154,6 +154,7 @@
   also expression traits.</li>
   <li>CFI-based debug info -- nlewycky/espindola details</li>
   <li>ObjC ARC -- get a blurb from rjmccall</li>
+  <li>ObjC related result type/instancetype</li>
   <li>API -- The term "instantiation" w.r.t. macros in APIs has been completely
   replaced by the term "expansion".</li>
   <li>Thread Safety attributes and correctness analysis added to Clang.</li>