Check in codegen test expectations.

test/codegen/expect/lib/typed_data/typed_data_from_list_test.js

Index: test/codegen/expect/lib/typed_data/typed_data_from_list_test.js
diff --git a/test/codegen/expect/lib/typed_data/typed_data_from_list_test.js b/test/codegen/expect/lib/typed_data/typed_data_from_list_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..fa9bc59204c6ce3df597fed44d2dc47ea42c648b
--- /dev/null
+++ b/test/codegen/expect/lib/typed_data/typed_data_from_list_test.js
@@ -0,0 +1,25 @@
+dart_library.library('lib/typed_data/typed_data_from_list_test', null, /* Imports */[
+  'dart_sdk'
+], function load__typed_data_from_list_test(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const collection = dart_sdk.collection;
+  const _interceptors = dart_sdk._interceptors;
+  const typed_data = dart_sdk.typed_data;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const typed_data_from_list_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let ListOfint = () => (ListOfint = dart.constFn(core.List$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  typed_data_from_list_test.main = function() {
+    let list = new collection.UnmodifiableListView(JSArrayOfint().of([1, 2]));
+    let typed = typed_data.Uint8List.fromList(ListOfint()._check(list));
+    if (typed[dartx.get](0) != 1 || typed[dartx.get](1) != 2 || typed[dartx.length] != 2) {
+      dart.throw('Test failed');
+    }
+  };
+  dart.fn(typed_data_from_list_test.main, VoidTodynamic());
+  // Exports:
+  exports.typed_data_from_list_test = typed_data_from_list_test;
+});