Shorter encoding for zero optional arguments.

sdk/lib/_internal/js_runtime/lib/js_helper.dart

Index: sdk/lib/_internal/js_runtime/lib/js_helper.dart
diff --git a/sdk/lib/_internal/js_runtime/lib/js_helper.dart b/sdk/lib/_internal/js_runtime/lib/js_helper.dart
index 6f5cf9df7c8110bbb93933671bf53d06ea1cfb54..7354ca2b9723d2e4dc43ade0de02c5fed5626e55 100644
--- a/sdk/lib/_internal/js_runtime/lib/js_helper.dart
+++ b/sdk/lib/_internal/js_runtime/lib/js_helper.dart
@@ -1369,6 +1369,11 @@ class Primitives {
     }
 
     if (!acceptsOptionalArguments) {
+      if (namedArguments != null && namedArguments.isNotEmpty) {
+        // Tried to invoke a function that takes a fixed number of arguments
+        // with named (optional) arguments.
+        return functionNoSuchMethod(function, arguments, namedArguments);
+      }
       if (argumentCount == requiredParameterCount) {
         return JS('var', r'#.apply(#, #)', jsFunction, function, arguments);
       }