Check in codegen test expectations.

test/codegen/expect/language/missing_const_constructor_test_01_multi.js

+dart_library.library('language/missing_const_constructor_test_01_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__missing_const_constructor_test_01_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const missing_const_constructor_test_01_multi = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  missing_const_constructor_test_01_multi.GoodClass = class GoodClass extends core.Object {
+    new() {
+    }
+  };
+  dart.setSignature(missing_const_constructor_test_01_multi.GoodClass, {
+    constructors: () => ({new: dart.definiteFunctionType(missing_const_constructor_test_01_multi.GoodClass, [])})
+  });
+  missing_const_constructor_test_01_multi.GOOD_CLASS = dart.const(new missing_const_constructor_test_01_multi.GoodClass());
+  missing_const_constructor_test_01_multi.main = function() {
+    try {
+      core.print(missing_const_constructor_test_01_multi.GOOD_CLASS);
+    } catch (e) {
+    }
+
+  };
+  dart.fn(missing_const_constructor_test_01_multi.main, VoidTovoid());
+  // Exports:
+  exports.missing_const_constructor_test_01_multi = missing_const_constructor_test_01_multi;
+});