Check in codegen test expectations.

test/codegen/expect/language/lazy_static7_test.js

+dart_library.library('language/lazy_static7_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__lazy_static7_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 lazy_static7_test = Object.create(null);
+  let VoidToint = () => (VoidToint = dart.constFn(dart.definiteFunctionType(core.int, [])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  lazy_static7_test.sideEffect = 0;
+  dart.defineLazy(lazy_static7_test, {
+    get x() {
+      return dart.fn(() => {
+        lazy_static7_test.sideEffect = dart.notNull(lazy_static7_test.sideEffect) + 1;
+        return 499;
+      }, VoidToint())();
+    },
+    set x(_) {}
+  });
+  lazy_static7_test.main = function() {
+    if (dart.notNull(new core.DateTime.now().day) >= -1) {
+      lazy_static7_test.x = 42;
+    }
+    expect$.Expect.equals(42, lazy_static7_test.x);
+    expect$.Expect.equals(0, lazy_static7_test.sideEffect);
+  };
+  dart.fn(lazy_static7_test.main, VoidTodynamic());
+  // Exports:
+  exports.lazy_static7_test = lazy_static7_test;
+});