1 files changed, 9 insertions, 0 deletions
diff --git a/include/clang/Basic/DiagnosticSerializationKinds.td b/include/clang/Basic/DiagnosticSerializationKinds.td
index f9e7b8fa9b56..7c9e8c8980aa 100644
--- a/include/clang/Basic/DiagnosticSerializationKinds.td
+++ b/include/clang/Basic/DiagnosticSerializationKinds.td
@@ -174,6 +174,15 @@ def note_module_odr_violation_mismatch_decl_diff : Note<"but in '%0' found "
   "method %2 with %ordinal3 parameter of type %4%select{| decayed from %6}5|"
   "method %2 with %ordinal3 parameter named %4}1">;
 
+def err_module_odr_violation_mismatch_decl_unknown : Error<
+  "%q0 %select{with definition in module '%2'|defined here}1 has different "
+  "definitions in different modules; first difference is this "
+  "%select{||||static assert|field|method|unexpected decl}3">;
+def note_module_odr_violation_mismatch_decl_unknown : Note<
+  "but in '%0' found "
+  "%select{||||different static assert|different field|different method|"
+  "another unexpected decl}1">;
+
 def warn_duplicate_module_file_extension : Warning<
   "duplicate module file extension block name '%0'">,
   InGroup<ModuleFileExtension>;