Check in codegen test expectations.

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

+dart_library.library('lib/html/instance_of_test', null, /* Imports */[
+  'dart_sdk',
+  'unittest'
+], function load__instance_of_test(exports, dart_sdk, unittest) {
+  'use strict';
+  const core = dart_sdk.core;
+  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 src__matcher__operator_matchers = unittest.src__matcher__operator_matchers;
+  const instance_of_test = Object.create(null);
+  let ListOfint = () => (ListOfint = dart.constFn(core.List$(core.int)))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  instance_of_test.main = function() {
+    let canvas = null;
+    canvas = html.CanvasElement._check(html.Element.tag('canvas'));
+    canvas[dartx.attributes][dartx.set]('width', '100');
+    canvas[dartx.attributes][dartx.set]('height', '100');
+    html.document[dartx.body][dartx.append](canvas);
+    let isCanvasRenderingContext = src__matcher__core_matchers.predicate(dart.fn(x => html.CanvasRenderingContext.is(x), dynamicTobool()), 'is a CanvasRenderingContext');
+    let isCanvasRenderingContext2D = src__matcher__core_matchers.predicate(dart.fn(x => html.CanvasRenderingContext2D.is(x), dynamicTobool()), 'is a CanvasRenderingContext2D');
+    let isElement = src__matcher__core_matchers.predicate(dart.fn(x => html.Element.is(x), dynamicTobool()), 'is an Element');
+    let isCanvasElement = src__matcher__core_matchers.predicate(dart.fn(x => html.CanvasElement.is(x), dynamicTobool()), 'is a CanvasElement');
+    let isImageData = src__matcher__core_matchers.predicate(dart.fn(x => html.ImageData.is(x), dynamicTobool()), 'is an ImageData');
+    let isIntList = src__matcher__core_matchers.predicate(dart.fn(x => ListOfint().is(x), dynamicTobool()), 'is a List<int>');
+    html_config.useHtmlConfiguration();
+    unittest$.test('Instanceof', dart.fn(() => {
+      src__matcher__expect.expect(canvas, src__matcher__operator_matchers.isNot(isCanvasRenderingContext));
+      src__matcher__expect.expect(canvas, src__matcher__operator_matchers.isNot(isCanvasRenderingContext2D));
+      src__matcher__expect.expect(canvas, isElement);
+      src__matcher__expect.expect(canvas, isCanvasElement);
+      src__matcher__expect.expect(canvas, src__matcher__operator_matchers.isNot(isImageData));
+      let context = html.CanvasRenderingContext2D._check(canvas[dartx.getContext]('2d'));
+      src__matcher__expect.expect(context, isCanvasRenderingContext);
+      src__matcher__expect.expect(context, isCanvasRenderingContext2D);
+      src__matcher__expect.expect(context, src__matcher__operator_matchers.isNot(isElement));
+      src__matcher__expect.expect(context, src__matcher__operator_matchers.isNot(isCanvasElement));
+      src__matcher__expect.expect(context, src__matcher__operator_matchers.isNot(isImageData));
+      let image = context[dartx.createImageData](canvas[dartx.width], core.num._check(canvas[dartx.height]));
+      src__matcher__expect.expect(image, src__matcher__operator_matchers.isNot(isCanvasRenderingContext));
+      src__matcher__expect.expect(image, src__matcher__operator_matchers.isNot(isCanvasRenderingContext2D));
+      src__matcher__expect.expect(image, src__matcher__operator_matchers.isNot(isElement));
+      src__matcher__expect.expect(image, src__matcher__operator_matchers.isNot(isCanvasElement));
+      src__matcher__expect.expect(image, isImageData);
+      let bytes = image[dartx.data];
+      src__matcher__expect.expect(bytes, src__matcher__operator_matchers.isNot(isCanvasRenderingContext));
+      src__matcher__expect.expect(bytes, src__matcher__operator_matchers.isNot(isCanvasRenderingContext2D));
+      src__matcher__expect.expect(bytes, src__matcher__operator_matchers.isNot(isElement));
+      src__matcher__expect.expect(bytes, src__matcher__operator_matchers.isNot(isCanvasElement));
+      src__matcher__expect.expect(bytes, src__matcher__operator_matchers.isNot(isImageData));
+      src__matcher__expect.expect(bytes, isIntList);
+      let span = html.Element.tag('span');
+      src__matcher__expect.expect(span, isElement);
+    }, VoidTodynamic()));
+  };
+  dart.fn(instance_of_test.main, VoidTodynamic());
+  // Exports:
+  exports.instance_of_test = instance_of_test;
+});