fixes #231, mixin application (aka ClassTypeAlias) implicit ctors

lib/runtime/dart/collection.js

 dart_library.library('dart/collection', null, /* Imports */[
   "dart_runtime/dart",
   'dart/core'
 ], /* Lazy imports */[
   'dart/_internal',
   'dart/_js_helper',
   'dart/math'
 ], function(exports, dart, core, _internal, _js_helper, math) {
   'use strict';
   let dartx = dart.dartx;
@@ skipping 2303 matching lines @@
         addAll: [dart.void, [core.Map$(K, V)]],
         clear: [dart.void, []],
         remove: [V, [core.Object]],
         putIfAbsent: [V, [K, dart.functionType(V, [])]]
       })
     });
     return _UnmodifiableMapMixin;
   });
   let _UnmodifiableMapMixin = _UnmodifiableMapMixin$();
   let UnmodifiableMapBase$ = dart.generic(function(K, V) {
-    class UnmodifiableMapBase extends dart.mixin(MapBase$(K, V), _UnmodifiableMapMixin$(K, V)) {}
+    class UnmodifiableMapBase extends dart.mixin(MapBase$(K, V), _UnmodifiableMapMixin$(K, V)) {
+      UnmodifiableMapBase() {
+        super.MapBase(...arguments);
+      }
+    }
     return UnmodifiableMapBase;
   });
   let UnmodifiableMapBase = UnmodifiableMapBase$();
   let _map = Symbol('_map');
   let _MapBaseValueIterable$ = dart.generic(function(V) {
     class _MapBaseValueIterable extends IterableBase$(V) {
       _MapBaseValueIterable(map) {
         this[_map] = map;
         super.IterableBase();
       }
@@ skipping 132 matching lines @@
         containsKey: [core.bool, [core.Object]],
         containsValue: [core.bool, [core.Object]],
         forEach: [dart.void, [dart.functionType(dart.void, [K, V])]],
         remove: [V, [core.Object]]
       })
     });
     return MapView;
   });
   let MapView = MapView$();
   let UnmodifiableMapView$ = dart.generic(function(K, V) {
-    class UnmodifiableMapView extends dart.mixin(MapView$(K, V), _UnmodifiableMapMixin$(K, V)) {}
+    class UnmodifiableMapView extends dart.mixin(MapView$(K, V), _UnmodifiableMapMixin$(K, V)) {
+      UnmodifiableMapView() {
+        super.MapView(...arguments);
+      }
+    }
     return UnmodifiableMapView;
   });
   let UnmodifiableMapView = UnmodifiableMapView$();
   class Maps extends core.Object {
     static containsValue(map, value) {
       for (let v of map.values) {
         if (dart.equals(value, v)) {
           return true;
         }
       }
@@ skipping 3524 matching lines @@
   exports.LinkedHashMapKeyIterable$ = LinkedHashMapKeyIterable$;
   exports.LinkedHashMapKeyIterable = LinkedHashMapKeyIterable;
   exports.LinkedHashMapKeyIterator$ = LinkedHashMapKeyIterator$;
   exports.LinkedHashMapKeyIterator = LinkedHashMapKeyIterator;
   exports.HashSetIterator$ = HashSetIterator$;
   exports.HashSetIterator = HashSetIterator;
   exports.LinkedHashSetCell = LinkedHashSetCell;
   exports.LinkedHashSetIterator$ = LinkedHashSetIterator$;
   exports.LinkedHashSetIterator = LinkedHashSetIterator;
 });