Check in codegen test expectations.

test/codegen/expect/language/refine_receiver_null_test.js

Index: test/codegen/expect/language/refine_receiver_null_test.js
diff --git a/test/codegen/expect/language/refine_receiver_null_test.js b/test/codegen/expect/language/refine_receiver_null_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..96c69e9df76bbd487b366f2b60a1b45b1c6879cd
--- /dev/null
+++ b/test/codegen/expect/language/refine_receiver_null_test.js
@@ -0,0 +1,38 @@
+dart_library.library('language/refine_receiver_null_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__refine_receiver_null_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 refine_receiver_null_test = Object.create(null);
+  const compiler_annotations = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let VoidToint = () => (VoidToint = dart.constFn(dart.definiteFunctionType(core.int, [])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  refine_receiver_null_test.main = function() {
+    let a = true ? null : 42;
+    dart.toString(a);
+    refine_receiver_null_test.foo(a);
+  };
+  dart.fn(refine_receiver_null_test.main, VoidTodynamic());
+  refine_receiver_null_test.foo = function(a) {
+    let f = dart.fn(() => 42, VoidToint());
+    expect$.Expect.throws(dart.fn(() => dart.dsend(a, '+', 42), VoidTovoid()), dart.fn(e => core.NoSuchMethodError.is(e), dynamicTobool()));
+  };
+  dart.fn(refine_receiver_null_test.foo, dynamicTodynamic());
+  compiler_annotations.DontInline = class DontInline extends core.Object {
+    new() {
+    }
+  };
+  dart.setSignature(compiler_annotations.DontInline, {
+    constructors: () => ({new: dart.definiteFunctionType(compiler_annotations.DontInline, [])})
+  });
+  // Exports:
+  exports.refine_receiver_null_test = refine_receiver_null_test;
+  exports.compiler_annotations = compiler_annotations;
+});