Check in codegen test expectations.

test/codegen/expect/language/async_finally_rethrow_test.js

Index: test/codegen/expect/language/async_finally_rethrow_test.js
diff --git a/test/codegen/expect/language/async_finally_rethrow_test.js b/test/codegen/expect/language/async_finally_rethrow_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..861cac3c16a9dfdc046fb26463f28a74fca2fcce
--- /dev/null
+++ b/test/codegen/expect/language/async_finally_rethrow_test.js
@@ -0,0 +1,45 @@
+dart_library.library('language/async_finally_rethrow_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__async_finally_rethrow_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 async_finally_rethrow_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  async_finally_rethrow_test.foo = function() {
+    return dart.async(function*() {
+      try {
+        yield 1;
+        dart.throw("error");
+      } catch (e) {
+        if (core.String.is(e)) {
+          yield 2;
+          dart.throw(e);
+        } else
+          throw e;
+      }
+ finally {
+        yield 3;
+      }
+    }, dart.dynamic);
+  };
+  dart.fn(async_finally_rethrow_test.foo, VoidTodynamic());
+  async_finally_rethrow_test.main = function() {
+    return dart.async(function*() {
+      let error = "no error";
+      try {
+        yield async_finally_rethrow_test.foo();
+      } catch (e) {
+        error = core.String._check(e);
+      }
+
+      expect$.Expect.equals("error", error);
+    }, dart.dynamic);
+  };
+  dart.fn(async_finally_rethrow_test.main, VoidTodynamic());
+  // Exports:
+  exports.async_finally_rethrow_test = async_finally_rethrow_test;
+});