static_cast, reinterpret_cast, and const_cast can all be used in C++
integral constant expressions (for conversions to integer types,
naturally). I don't *think* that const_casts will ever get to this
point, but I also can't convince myself that they won't... so I've
taken the safe route and allowed the ICE checking code to look at
const_cast.

llvm-svn: 81453
diff --git a/clang/test/SemaCXX/i-c-e-cxx.cpp b/clang/test/SemaCXX/i-c-e-cxx.cpp
index 32d04e2..dc369ab 100644
--- a/clang/test/SemaCXX/i-c-e-cxx.cpp
+++ b/clang/test/SemaCXX/i-c-e-cxx.cpp
@@ -4,3 +4,7 @@
 
 const int c = 10;
 int ar[c];
+
+struct X0 {
+  static const int value = static_cast<int>(4.0);
+};