Check in codegen test expectations.

test/codegen/expect/language/getter_setter_interceptor_test.js

Index: test/codegen/expect/language/getter_setter_interceptor_test.js
diff --git a/test/codegen/expect/language/getter_setter_interceptor_test.js b/test/codegen/expect/language/getter_setter_interceptor_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..9cef3865ce1b20b9d6956bbd1c70d3a63dc614b1
--- /dev/null
+++ b/test/codegen/expect/language/getter_setter_interceptor_test.js
@@ -0,0 +1,55 @@
+dart_library.library('language/getter_setter_interceptor_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__getter_setter_interceptor_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const getter_setter_interceptor_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  getter_setter_interceptor_test.A = class A extends core.Object {
+    new() {
+      this.length = 0;
+    }
+  };
+  getter_setter_interceptor_test.B = class B extends core.Object {
+    new() {
+      this.length = 0;
+    }
+    foo(receiver) {
+      this.length = dart.notNull(this.length) + 1;
+      let x = dart.dload(receiver, 'length');
+      dart.dput(receiver, 'length', dart.dsend(x, '+', 1));
+      return x;
+    }
+    bar(receiver) {
+      this.length = dart.notNull(this.length) + 1;
+      return dart.dput(receiver, 'length', dart.dsend(dart.dload(receiver, 'length'), '+', 1));
+    }
+  };
+  dart.setSignature(getter_setter_interceptor_test.B, {
+    methods: () => ({
+      foo: dart.definiteFunctionType(dart.dynamic, [dart.dynamic]),
+      bar: dart.definiteFunctionType(dart.dynamic, [dart.dynamic])
+    })
+  });
+  getter_setter_interceptor_test.main = function() {
+    let a = new getter_setter_interceptor_test.A();
+    let b = new getter_setter_interceptor_test.B();
+    let c = JSArrayOfint().of([1, 2, 3]);
+    expect$.Expect.equals(3, b.foo(c));
+    expect$.Expect.equals(5, b.bar(c));
+    expect$.Expect.equals(5, c[dartx.length]);
+    expect$.Expect.equals(0, b.foo(a));
+    expect$.Expect.equals(2, b.bar(a));
+    expect$.Expect.equals(2, a.length);
+    expect$.Expect.equals(4, b.length);
+  };
+  dart.fn(getter_setter_interceptor_test.main, VoidTodynamic());
+  // Exports:
+  exports.getter_setter_interceptor_test = getter_setter_interceptor_test;
+});