Temporary fix for assert while evaluating array-to-pointer decay on array
rvalue. Test and better fix to follow.

llvm-svn: 143360
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 9e1e75d..a12beb5 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -1223,7 +1223,9 @@
   }
   case CK_ArrayToPointerDecay:
   case CK_FunctionToPointerDecay:
-    return EvaluateLValue(SubExpr, Result, Info);
+    if (SubExpr->isGLValue() || SubExpr->getType()->isFunctionType())
+      return EvaluateLValue(SubExpr, Result, Info);
+    return Error(E);
   }
 
   return ExprEvaluatorBaseTy::VisitCastExpr(E);