Check in codegen test expectations.

test/codegen/expect/lib/html/client_rect_test.js

Index: test/codegen/expect/lib/html/client_rect_test.js
diff --git a/test/codegen/expect/lib/html/client_rect_test.js b/test/codegen/expect/lib/html/client_rect_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..65c0c1fcfd34a5048a6976a26c698711a245b554
--- /dev/null
+++ b/test/codegen/expect/lib/html/client_rect_test.js
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+dart_library.library('lib/html/client_rect_test', null, /* Imports */[
+  'dart_sdk',
+  'unittest'
+], function load__client_rect_test(exports, dart_sdk, unittest) {
+  'use strict';
+  const core = dart_sdk.core;
+  const math = dart_sdk.math;
+  const html = dart_sdk.html;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const src__matcher__core_matchers = unittest.src__matcher__core_matchers;
+  const html_config = unittest.html_config;
+  const unittest$ = unittest.unittest;
+  const src__matcher__expect = unittest.src__matcher__expect;
+  const client_rect_test = Object.create(null);
+  let RectangleOfnum = () => (RectangleOfnum = dart.constFn(math.Rectangle$(core.num)))();
+  let ListOfRectangleOfnum = () => (ListOfRectangleOfnum = dart.constFn(core.List$(RectangleOfnum())))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  client_rect_test.main = function() {
+    let isRectList = src__matcher__core_matchers.predicate(dart.fn(x => ListOfRectangleOfnum().is(x), dynamicTobool()), 'is a List<Rectangle>');
+    function insertTestDiv() {
+      let element = html.Element.tag('div');
+      element[dartx.innerHtml] = '    A large block of text should go here. Click this\n    block of text multiple times to see each line\n    highlight with every click of the mouse button.\n    ';
+      html.document[dartx.body][dartx.append](element);
+      return element;
+    }
+    dart.fn(insertTestDiv, VoidTodynamic());
+    html_config.useHtmlConfiguration();
+    unittest$.test("ClientRectList test", dart.fn(() => {
+      insertTestDiv();
+      let range = html.Range.new();
+      let rects = range[dartx.getClientRects]();
+      src__matcher__expect.expect(rects, isRectList);
+    }, VoidTodynamic()));
+  };
+  dart.fn(client_rect_test.main, VoidTodynamic());
+  // Exports:
+  exports.client_rect_test = client_rect_test;
+});