Implement __is_empty.  Patch by Sean Hunt.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79143 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 3212923..b216ec1 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -749,6 +749,7 @@
     New->setVirtualAsWritten(true);
     Record->setAggregate(false);
     Record->setPOD(false);
+    Record->setEmpty(false);
     Record->setPolymorphic(true);
   }
   if (Tmpl->isPure()) {