Reapply "reflectType() dynamic type arguments support (#26012)"

runtime/vm/bootstrap_natives.h

 // Copyright (c) 2012, 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.
 
 #ifndef RUNTIME_VM_BOOTSTRAP_NATIVES_H_
 #define RUNTIME_VM_BOOTSTRAP_NATIVES_H_
 
 #include "vm/native_entry.h"
 
 // bootstrap dart natives used in the core dart library.
@@ skipping 348 matching lines @@
   V(VMService_CancelStream, 1)                                                 \
   V(VMService_RequestAssets, 0)                                                \
   V(VMService_DecodeAssets, 1)                                                 \
   V(VMService_spawnUriNotify, 2)
 
 // List of bootstrap native entry points used in the dart:mirror library.
 #define MIRRORS_BOOTSTRAP_NATIVE_LIST(V)                                       \
   V(Mirrors_evalInLibraryWithPrivateKey, 2)                                    \
   V(Mirrors_makeLocalClassMirror, 1)                                           \
   V(Mirrors_makeLocalTypeMirror, 1)                                            \
+  V(Mirrors_instantiateGenericType, 2)                                         \
   V(Mirrors_mangleName, 2)                                                     \
   V(MirrorReference_equals, 2)                                                 \
   V(MirrorSystem_libraries, 0)                                                 \
   V(MirrorSystem_isolate, 0)                                                   \
   V(InstanceMirror_invoke, 5)                                                  \
   V(InstanceMirror_invokeGetter, 3)                                            \
   V(InstanceMirror_invokeSetter, 4)                                            \
   V(InstanceMirror_computeType, 1)                                             \
   V(ClosureMirror_function, 1)                                                 \
   V(TypeMirror_subtypeTest, 2)                                                 \
@@ skipping 49 matching lines @@
 #ifndef PRODUCT
   MIRRORS_BOOTSTRAP_NATIVE_LIST(DECLARE_BOOTSTRAP_NATIVE)
 #endif
 
 #undef DECLARE_BOOTSTRAP_NATIVE
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_BOOTSTRAP_NATIVES_H_