Document the dependent type equivalence test case's purpose.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71162 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/SemaTemplate/dependent-type-identity.cpp b/test/SemaTemplate/dependent-type-identity.cpp
index 61fa81a654990c41019f13b6c8ec7d662c15907c..6843dbe8924601f5868b365e9f9d48c88db17fe3 100644 (file)
--- a/test/SemaTemplate/dependent-type-identity.cpp
+++ b/test/SemaTemplate/dependent-type-identity.cpp
@@ -1,5 +1,12 @@
 // RUN: clang-cc -fsyntax-only -verify %s
 
+// This test concerns the identity of dependent types within the
+// canonical type system. This corresponds to C++ [temp.type], which
+// specifies type equivalence within a template.
+//
+// FIXME: template template parameters
+// FIXME: members of the current instantiation
+
 namespace N {
   template<typename T>
   struct X2 {