Fix runtime strong mode error in ListMixin

pkg/dev_compiler/lib/js/es6/dart_sdk.js

Index: pkg/dev_compiler/lib/js/es6/dart_sdk.js
diff --git a/pkg/dev_compiler/lib/js/es6/dart_sdk.js b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
index 3a48f4865b4fc2b0166d7e84823d0dd6a7516b58..9583195967eec7a6cf159ad78fc6598e29bc2a22 100644
--- a/pkg/dev_compiler/lib/js/es6/dart_sdk.js
+++ b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
@@ -5640,6 +5640,7 @@ dart.defineLazy(core.double, {
 });
 _internal.POWERS_OF_TEN = dart.constList([1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, 10000000.0, 100000000.0, 1000000000.0, 10000000000.0, 100000000000.0, 1000000000000.0, 10000000000000.0, 100000000000000.0, 1000000000000000.0, 10000000000000000.0, 100000000000000000.0, 1000000000000000000.0, 10000000000000000000.0, 100000000000000000000.0, 1e+21, 1e+22], core.double);
 const _string = Symbol('_string');
+const _filter = Symbol('_filter');
 collection.ListMixin$ = dart.generic(E => {
   let ListIteratorOfE = () => (ListIteratorOfE = dart.constFn(_internal.ListIterator$(E)))();
   let VoidToE = () => (VoidToE = dart.constFn(dart.functionType(E, [])))();
@@ -5651,6 +5652,7 @@ collection.ListMixin$ = dart.generic(E => {
   let ListOfE = () => (ListOfE = dart.constFn(core.List$(E)))();
   let SetOfE = () => (SetOfE = dart.constFn(core.Set$(E)))();
   let IterableOfE = () => (IterableOfE = dart.constFn(core.Iterable$(E)))();
+  let JSArrayOfE = () => (JSArrayOfE = dart.constFn(_interceptors.JSArray$(E)))();
   let ListMapViewOfE = () => (ListMapViewOfE = dart.constFn(_internal.ListMapView$(E)))();
   let ReversedListIterableOfE = () => (ReversedListIterableOfE = dart.constFn(_internal.ReversedListIterable$(E)))();
   let ETovoid = () => (ETovoid = dart.constFn(dart.functionType(dart.void, [E])))();
@@ -5932,13 +5934,14 @@ collection.ListMixin$ = dart.generic(E => {
       return false;
     }
     removeWhere(test) {
-      collection.ListMixin._filter(this, test, false);
+      this[_filter](test, false);
     }
     retainWhere(test) {
-      collection.ListMixin._filter(this, test, true);
+      this[_filter](test, true);
     }
-    static _filter(source, test, retainMatching) {
-      let retained = [];
+    [_filter](test, retainMatching) {
+      let source = this;
+      let retained = JSArrayOfE().of([]);
       let length = source[dartx.length];
       for (let i = 0; i < dart.notNull(length); i++) {
         let element = source[dartx._get](i);
@@ -6200,6 +6203,7 @@ collection.ListMixin$ = dart.generic(E => {
       remove: dart.definiteFunctionType(core.bool, [core.Object]),
       removeWhere: dart.definiteFunctionType(dart.void, [ETobool()]),
       retainWhere: dart.definiteFunctionType(dart.void, [ETobool()]),
+      [_filter]: dart.definiteFunctionType(dart.void, [dynamicTobool(), core.bool]),
       clear: dart.definiteFunctionType(dart.void, []),
       removeLast: dart.definiteFunctionType(E, []),
       sort: dart.definiteFunctionType(dart.void, [], [EAndEToint()]),
@@ -6217,9 +6221,7 @@ collection.ListMixin$ = dart.generic(E => {
       removeAt: dart.definiteFunctionType(E, [core.int]),
       insertAll: dart.definiteFunctionType(dart.void, [core.int, IterableOfE()]),
       setAll: dart.definiteFunctionType(dart.void, [core.int, IterableOfE()])
-    }),
-    statics: () => ({_filter: dart.definiteFunctionType(dart.void, [core.List, dynamicTobool(), core.bool])}),
-    names: ['_filter']
+    })
   });
   dart.defineExtensionMembers(ListMixin, [
     'elementAt',
@@ -27105,7 +27107,6 @@ collection._DoubleLinkedQueueSentinel$ = dart.generic(E => {
 });
 collection._DoubleLinkedQueueSentinel = _DoubleLinkedQueueSentinel();
 const _sentinel = Symbol('_sentinel');
-const _filter = Symbol('_filter');
 collection.DoubleLinkedQueue$ = dart.generic(E => {
   let _DoubleLinkedQueueSentinelOfE = () => (_DoubleLinkedQueueSentinelOfE = dart.constFn(collection._DoubleLinkedQueueSentinel$(E)))();
   let DoubleLinkedQueueOfE = () => (DoubleLinkedQueueOfE = dart.constFn(collection.DoubleLinkedQueue$(E)))();