Check in codegen test expectations.

test/codegen/expect/language/instance_inline_test.js

Index: test/codegen/expect/language/instance_inline_test.js
diff --git a/test/codegen/expect/language/instance_inline_test.js b/test/codegen/expect/language/instance_inline_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..8fa46b6cb5fc3b7cf6caeb97cca26125510b9e86
--- /dev/null
+++ b/test/codegen/expect/language/instance_inline_test.js
@@ -0,0 +1,41 @@
+dart_library.library('language/instance_inline_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__instance_inline_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const instance_inline_test = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  instance_inline_test.StringScanner = class StringScanner extends core.Object {
+    new(string) {
+      this.string = string;
+      this.byteOffset = -1;
+    }
+    nextByte() {
+      return this.charAt((this.byteOffset = dart.notNull(this.byteOffset) + 1));
+    }
+    charAt(index) {
+      return dart.notNull(this.string[dartx.length]) > dart.notNull(core.num._check(index)) ? this.string[dartx.codeUnitAt](core.int._check(index)) : -1;
+    }
+  };
+  dart.setSignature(instance_inline_test.StringScanner, {
+    constructors: () => ({new: dart.definiteFunctionType(instance_inline_test.StringScanner, [core.String])}),
+    methods: () => ({
+      nextByte: dart.definiteFunctionType(core.int, []),
+      charAt: dart.definiteFunctionType(core.int, [dart.dynamic])
+    })
+  });
+  instance_inline_test.main = function() {
+    let scanner = new instance_inline_test.StringScanner('az9');
+    expect$.Expect.equals(97, scanner.nextByte());
+    expect$.Expect.equals(122, scanner.nextByte());
+    expect$.Expect.equals(57, scanner.nextByte());
+    expect$.Expect.equals(-1, scanner.nextByte());
+  };
+  dart.fn(instance_inline_test.main, VoidTovoid());
+  // Exports:
+  exports.instance_inline_test = instance_inline_test;
+});