Check in codegen test expectations.

test/codegen/expect/language/this_test_none_multi.js

Index: test/codegen/expect/language/this_test_none_multi.js
diff --git a/test/codegen/expect/language/this_test_none_multi.js b/test/codegen/expect/language/this_test_none_multi.js
new file mode 100644
index 0000000000000000000000000000000000000000..7b01266edcee97ffad45dc9e6b6927ac84e1acc0
--- /dev/null
+++ b/test/codegen/expect/language/this_test_none_multi.js
@@ -0,0 +1,29 @@
+dart_library.library('language/this_test_none_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__this_test_none_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const this_test_none_multi = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  this_test_none_multi.Foo = class Foo extends core.Object {
+    new() {
+      this.x = null;
+    }
+    f() {}
+    testMe() {}
+  };
+  dart.setSignature(this_test_none_multi.Foo, {
+    methods: () => ({
+      f: dart.definiteFunctionType(dart.dynamic, []),
+      testMe: dart.definiteFunctionType(dart.dynamic, [])
+    })
+  });
+  this_test_none_multi.main = function() {
+    new this_test_none_multi.Foo().testMe();
+  };
+  dart.fn(this_test_none_multi.main, VoidTodynamic());
+  // Exports:
+  exports.this_test_none_multi = this_test_none_multi;
+});