Check in codegen test expectations.

test/codegen/expect/language/await_postfix_expr_test.js

Index: test/codegen/expect/language/await_postfix_expr_test.js
diff --git a/test/codegen/expect/language/await_postfix_expr_test.js b/test/codegen/expect/language/await_postfix_expr_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..1102078ac4a04ed390435c96bf69b3586f51c788
--- /dev/null
+++ b/test/codegen/expect/language/await_postfix_expr_test.js
@@ -0,0 +1,98 @@
+dart_library.library('language/await_postfix_expr_test', null, /* Imports */[
+  'dart_sdk',
+  'expect',
+  'async_helper'
+], function load__await_postfix_expr_test(exports, dart_sdk, expect, async_helper) {
+  '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 async_helper$ = async_helper.async_helper;
+  const await_postfix_expr_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  await_postfix_expr_test.post0 = function(a) {
+    return dart.async(function*(a) {
+      return yield (() => {
+        let x = a;
+        a = dart.dsend(x, '+', 1);
+        return x;
+      })();
+    }, dart.dynamic, a);
+  };
+  dart.fn(await_postfix_expr_test.post0, dynamicTodynamic());
+  await_postfix_expr_test.post1 = function(a) {
+    return dart.async(function*(a) {
+      return dart.dsend(yield (() => {
+        let x = a;
+        a = dart.dsend(x, '+', 1);
+        return x;
+      })(), '+', yield (() => {
+        let x = a;
+        a = dart.dsend(x, '+', 1);
+        return x;
+      })());
+    }, dart.dynamic, a);
+  };
+  dart.fn(await_postfix_expr_test.post1, dynamicTodynamic());
+  await_postfix_expr_test.pref0 = function(a) {
+    return dart.async(function*(a) {
+      return yield (a = dart.dsend(a, '+', 1));
+    }, dart.dynamic, a);
+  };
+  dart.fn(await_postfix_expr_test.pref0, dynamicTodynamic());
+  await_postfix_expr_test.pref1 = function(a) {
+    return dart.async(function*(a) {
+      return dart.dsend(yield (a = dart.dsend(a, '+', 1)), '+', yield (a = dart.dsend(a, '+', 1)));
+    }, dart.dynamic, a);
+  };
+  dart.fn(await_postfix_expr_test.pref1, dynamicTodynamic());
+  await_postfix_expr_test.sum = function(a) {
+    return dart.async(function*(a) {
+      let s = 0;
+      for (let i = 0; i < dart.notNull(core.num._check(dart.dload(a, 'length')));) {
+        s = dart.notNull(s) + dart.notNull(core.int._check(dart.dindex(a, yield i++)));
+      }
+      return s;
+    }, dart.dynamic, a);
+  };
+  dart.fn(await_postfix_expr_test.sum, dynamicTodynamic());
+  await_postfix_expr_test.sum2 = function(n) {
+    return dart.async(function*(n) {
+      let i = null, s = 0;
+      for (i = 1; dart.notNull(i) <= dart.notNull(core.num._check(n)); yield (() => {
+        let x = i;
+        i = dart.notNull(x) + 1;
+        return x;
+      })()) {
+        let j = (yield i);
+        s = dart.notNull(s) + dart.notNull(j);
+      }
+      return s;
+    }, dart.dynamic, n);
+  };
+  dart.fn(await_postfix_expr_test.sum2, dynamicTodynamic());
+  await_postfix_expr_test.test = function() {
+    return dart.async(function*() {
+      expect$.Expect.equals(10, yield await_postfix_expr_test.post0(10));
+      expect$.Expect.equals(21, yield await_postfix_expr_test.post1(10));
+      expect$.Expect.equals(11, yield await_postfix_expr_test.pref0(10));
+      expect$.Expect.equals(23, yield await_postfix_expr_test.pref1(10));
+      expect$.Expect.equals(10, yield await_postfix_expr_test.sum(JSArrayOfint().of([1, 2, 3, 4])));
+      expect$.Expect.equals(10, yield await_postfix_expr_test.sum2(4));
+    }, dart.dynamic);
+  };
+  dart.fn(await_postfix_expr_test.test, VoidTodynamic());
+  await_postfix_expr_test.main = function() {
+    async_helper$.asyncStart();
+    dart.dsend(await_postfix_expr_test.test(), 'then', dart.fn(_ => {
+      async_helper$.asyncEnd();
+    }, dynamicTodynamic()));
+  };
+  dart.fn(await_postfix_expr_test.main, VoidTodynamic());
+  // Exports:
+  exports.await_postfix_expr_test = await_postfix_expr_test;
+});