Remove the Kernel setup_builtin_library transformation

runtime/vm/kernel_reader.cc

 // Copyright (c) 2016, 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.
 
 #include "vm/kernel_reader.h"
 
 #include <string.h>
 
 #include "vm/dart_api_impl.h"
 #include "vm/kernel_binary.h"
@@ skipping 190 matching lines @@
       Object& main_obj = Object::Handle(
           Z, library.LookupObjectAllowPrivate(H.DartSymbol("main")));
       ASSERT(!main_obj.IsNull());
 
       Function& to_patch = Function::Handle(
           Z, builtin_library.LookupFunctionAllowPrivate(
                  dart::String::Handle(dart::String::New("_getMainClosure"))));
 
       Procedure* procedure =
           reinterpret_cast<Procedure*>(to_patch.kernel_function());
-      // If dart:_builtin was not compiled from Kernel at all or if it was
-      // linked with a script, it does not need to be patched.
-      if ((procedure != NULL) && (procedure->function()->body() == NULL)) {
+      // If dart:_builtin was not compiled from Kernel at all it does not need
+      // to be patched.
+      if (procedure != NULL) {
         // We will handle the StaticGet specially and will not use the name.
         //
         // TODO(kmillikin): we are leaking the function body.  Find a way to
         // deallocate it.
         procedure->function()->set_body(
             new ReturnStatement(new StaticGet(NameIndex())));
       }
       return library;
     }
   }
@@ skipping 716 matching lines @@
   initializer_fun.set_is_debuggable(false);
   initializer_fun.set_is_reflectable(false);
   initializer_fun.set_is_inlinable(false);
   return new (zone) ParsedFunction(thread, initializer_fun);
 }
 
 
 }  // namespace kernel
 }  // namespace dart
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)