Fix mypyc (#6743)

Which doesn't support **kwargs

Author: msullivan

mypy/dmypy_server.py

@@ -517,11 +517,15 @@ def _find_changed(self, sources: List[BuildSource],
     def cmd_suggest(self,
                     function: str,
                     callsites: bool,
-                    **kwargs: bool) -> Dict[str, object]:
+                    # We'd like to just use **kwargs here and save some duplication but
+                    # mypyc doesn't support it yet...
+                    json: bool,
+                    no_errors: bool,
+                    no_any: bool) -> Dict[str, object]:
         """Suggest a signature for a function."""
         if not self.fine_grained_manager:
             return {'error': "Command 'suggest' is only valid after a 'check' command"}
-        engine = SuggestionEngine(self.fine_grained_manager, **kwargs)
+        engine = SuggestionEngine(self.fine_grained_manager, json, no_errors, no_any)
         try:
             if callsites:
                 out = engine.suggest_callsites(function)