ForceDeclarationOfImplicitMembers might deserialize (#259)

Author: vgvassilev

lib/Interpreter/CppInterOp.cpp

@@ -734,6 +734,9 @@ namespace Cpp {
       return;
 
     auto* CXXRD = dyn_cast<CXXRecordDecl>(D);
+#ifdef USE_CLING
+    cling::Interpreter::PushTransactionRAII RAII(&getInterp());
+#endif // USE_CLING
     getSema().ForceDeclarationOfImplicitMembers(CXXRD);
     for (Decl* DI : CXXRD->decls()) {
       if (auto* MD = dyn_cast<DeclType>(DI))