Fix support for const_cast<>s of array types which actual change the
CV-qualifiers. Remove an error expectation from the 'good' set of const-cast
test cases. With this patch, the final non-template test case from PR5542
passes. (It's the same as the one already in const-cast.cpp.)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92257 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/const-cast.cpp b/test/SemaCXX/const-cast.cpp
index 74a67e5..220e6fa 100644
--- a/test/SemaCXX/const-cast.cpp
+++ b/test/SemaCXX/const-cast.cpp
@@ -28,8 +28,9 @@
   char ***&var4 = const_cast<cpppr>(var3);
   // Drop reference. Intentionally without qualifier change.
   char *** var5 = const_cast<cppp>(var4);
+  // Const array to array reference.
   const int ar[100] = {0};
-  int (&rar)[100] = const_cast<iarr>(ar); // expected-error {{const_cast from 'int const [100]' to 'iarr' (aka 'iar &') is not allowed}}
+  int (&rar)[100] = const_cast<iarr>(ar);
   // Array decay. Intentionally without qualifier change.
   int *pi = const_cast<int*>(ar);
   f fp = 0;