Regen tests

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

-dart_library.library('collection/priority_queue', null, /* Imports */[
+dart_library.library('collection/src/priority_queue', null, /* Imports */[
   'dart/_runtime',
   'dart/core',
   'dart/collection'
 ], /* Lazy imports */[
 ], function(exports, dart, core, collection) {
   'use strict';
   let dartx = dart.dartx;
   const PriorityQueue$ = dart.generic(function(E) {
-    class PriorityQueue extends core.Object {}
+    class PriorityQueue extends core.Object {
+      static new(comparison) {
+        return new (HeapPriorityQueue$(E))(comparison);
+      }
+    }
+    dart.setSignature(PriorityQueue, {
+      constructors: () => ({new: [PriorityQueue$(E), [], [dart.functionType(core.int, [E, E])]]})
+    });
     return PriorityQueue;
   });
   let PriorityQueue = PriorityQueue$();
   const _queue = Symbol('_queue');
   const _length = Symbol('_length');
   const _add = Symbol('_add');
   const _locate = Symbol('_locate');
   const _removeLast = Symbol('_removeLast');
   const _bubbleUp = Symbol('_bubbleUp');
   const _bubbleDown = Symbol('_bubbleDown');
@@ skipping 211 matching lines @@
     const __CastType0 = dart.typedef('__CastType0', () => dart.functionType(core.int, [E, E]));
     return __CastType0;
   });
   let __CastType0 = __CastType0$();
   // Exports:
   exports.PriorityQueue$ = PriorityQueue$;
   exports.PriorityQueue = PriorityQueue;
   exports.HeapPriorityQueue$ = HeapPriorityQueue$;
   exports.HeapPriorityQueue = HeapPriorityQueue;
 });