Check in codegen test expectations.

test/codegen/expect/language/nested_if_test.js

Index: test/codegen/expect/language/nested_if_test.js
diff --git a/test/codegen/expect/language/nested_if_test.js b/test/codegen/expect/language/nested_if_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ebe1c58d8757adba4b0a7a5362df13e8edd28a2c
--- /dev/null
+++ b/test/codegen/expect/language/nested_if_test.js
@@ -0,0 +1,31 @@
+dart_library.library('language/nested_if_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__nested_if_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 nested_if_test = Object.create(null);
+  let dynamicAnddynamicTodynamic = () => (dynamicAnddynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  nested_if_test.foo = function(x, a) {
+    for (let i = 0; i < 10; i++) {
+      if (dart.test(x)) {
+        if (!dart.test(x)) a = [];
+        dart.dsend(a, 'add', 3);
+      }
+    }
+    return a;
+  };
+  dart.fn(nested_if_test.foo, dynamicAnddynamicTodynamic());
+  nested_if_test.main = function() {
+    let a = nested_if_test.foo(true, []);
+    expect$.Expect.equals(10, dart.dload(a, 'length'));
+    expect$.Expect.equals(3, dart.dindex(a, 0));
+  };
+  dart.fn(nested_if_test.main, VoidTodynamic());
+  // Exports:
+  exports.nested_if_test = nested_if_test;
+});