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test/codegen/expect/collection/src/utils.js

 dart_library.library('collection/src/utils', null, /* Imports */[
   'dart/_runtime',
   'dart/core'
 ], /* Lazy imports */[
 ], function(exports, dart, core) {
   'use strict';
   let dartx = dart.dartx;
   const Pair$ = dart.generic(function(E, F) {
     class Pair extends core.Object {
       Pair(first, last) {
         this.first = first;
         this.last = last;
       }
     }
     dart.setSignature(Pair, {
       constructors: () => ({Pair: [Pair$(E, F), [E, F]]})
     });
     return Pair;
   });
   let Pair = Pair$();
+  function defaultCompare() {
+    return dart.fn((value1, value2) => dart.as(value1, core.Comparable)[dartx.compareTo](value2), core.int, [dart.dynamic, dart.dynamic]);
+  }
+  dart.fn(defaultCompare, () => dart.definiteFunctionType(core.Comparator, []));
   // Exports:
   exports.Pair$ = Pair$;
   exports.Pair = Pair;
+  exports.defaultCompare = defaultCompare;
 });