avoid spread args

tool/input_sdk/private/ddc_runtime/operations.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 runtime operations on objects used by the code
 /// generator.
 part of dart._runtime;
 
 _canonicalFieldName(obj, name, args, displayName) => JS('', '''(() => {
   $name = $canonicalMember($obj, $name);
@@ skipping 112 matching lines @@
     if ($typeArgs == null) {
       $typeArgs = Array(formalCount).fill($dynamic);
     } else if ($typeArgs.length != formalCount) {
       // TODO(jmesserly): is this the right error?
       $throwStrongModeError(
           'incorrect number of arguments to generic function ' +
           $typeName($ftype) + ', got <' + $typeArgs + '> expected ' +
           formalCount + '.');
     }
     // Instantiate the function.
-    $ftype = $ftype(...$typeArgs);
+    $ftype = $ftype.apply(null, $typeArgs);
   } else if ($typeArgs != null) {
     $throwStrongModeError(
         'got type arguments to non-generic function ' + $typeName($ftype) +
         ', got <' + $typeArgs + '> expected none.');
   }
 
   if ($_checkApply($ftype, $args)) {
     if ($typeArgs != null) {
       return $f.apply($obj, $typeArgs).apply($obj, $args);
     }
@@ skipping 360 matching lines @@
     constructor(dartIterator) {
       this.dartIterator = dartIterator;
     }
     next() {
       let i = this.dartIterator;
       let done = !i.moveNext();
       return { done: done, value: done ? void 0 : i.current };
     }
   }
 ''');