fix #27971, implement generic function RTTI

pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/classes.dart

Index: pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/classes.dart
diff --git a/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/classes.dart b/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/classes.dart
index a0f02c7ac40553dacd76821115e80be28454f948..5845d8875d18086789ef0781cf3b99c2da61feec 100644
--- a/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/classes.dart
+++ b/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/classes.dart
@@ -286,7 +286,7 @@ bind(obj, name, f) => JS(
 /// associated function type.
 gbind(f, @rest typeArgs) {
   var result = JS('', '#.apply(null, #)', f, typeArgs);
-  var sig = JS('', '#.apply(null, #)', _getRuntimeType(f), typeArgs);
+  var sig = JS('', '#.instantiate(#)', _getRuntimeType(f), typeArgs);
   tag(result, sig);
   return result;
 }