message: Silence unhandled namespace declaration warnings
diff: @@ -1182,6 +1182,9 @@ void OnIndexDeclaration(CXClientData client_data, const CXIdxDeclInfo* decl) {
  NamespaceHelper* ns = &param->ns;
  switch (decl->entityInfo->kind) {
  + case CXIdxEntity_CXXNamespace:
  + break;
  +
  case CXIdxEntity_ObjCProperty:
  case CXIdxEntity_ObjCIvar:
  case CXIdxEntity_EnumConstant:
  