fix #27971, implement generic function RTTI

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

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// This library defines the operations that define and manipulate Dart
 /// classes.  Included in this are:
 ///   - Generics
 ///   - Class metadata
 ///   - Extension methods
 ///
@@ skipping 273 matching lines @@
   $tag($f, sig);
   return $f;
 })()''');
 
 /// Instantiate a generic method.
 ///
 /// We need to apply the type arguments both to the function, as well as its
 /// 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;
 }
 
 // Set up the method signature field on the constructor
 _setInstanceSignature(f, sigF, kind) => JS(
     '',
     '''(() => {
   $defineMemoizedGetter($f, $kind, () => {
     let sigObj = $sigF();
@@ skipping 338 matching lines @@
     '''(() => {
   let values = [];
   for (var i = 0; i < $names.length; i++) {
     let value = $const_(new $enumClass(i));
     values.push(value);
     Object.defineProperty($enumClass, $names[i],
         { value: value, configurable: true });
   }
   $enumClass.values = $constList(values, $enumClass);
 })()''');