Check in codegen test expectations.

test/codegen/expect/language/infinite_switch_label_test.js

+dart_library.library('language/infinite_switch_label_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__infinite_switch_label_test(exports, dart_sdk, expect) {
+  '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 infinite_switch_label_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let intTovoid = () => (intTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [core.int])))();
+  infinite_switch_label_test.main = function() {
+    expect$.Expect.throws(dart.fn(() => infinite_switch_label_test.doSwitch(0), VoidTovoid()), dart.fn(list => {
+      expect$.Expect.listEquals(JSArrayOfint().of([0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0]), core.List._check(list));
+      return true;
+    }, dynamicTobool()));
+    expect$.Expect.throws(dart.fn(() => infinite_switch_label_test.doSwitch(2), VoidTovoid()), dart.fn(list => {
+      expect$.Expect.listEquals(JSArrayOfint().of([2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0]), core.List._check(list));
+      return true;
+    }, dynamicTobool()));
+  };
+  dart.fn(infinite_switch_label_test.main, VoidTovoid());
+  infinite_switch_label_test.doSwitch = function(target) {
+    let list = [];
+    switch (target) {
+      case 0:
+      {
+        // Unimplemented case labels: [l0:]
+        if (dart.notNull(list[dartx.length]) > 10) dart.throw(list);
+        list[dartx.add](0);
+        continue l1;
+      }
+      case 1:
+      {
+        // Unimplemented case labels: [l1:]
+        if (dart.notNull(list[dartx.length]) > 10) dart.throw(list);
+        list[dartx.add](1);
+        continue l0;
+      }
+      default:
+      {
+        list[dartx.add](2);
+        continue l1;
+      }
+    }
+  };
+  dart.fn(infinite_switch_label_test.doSwitch, intTovoid());
+  // Exports:
+  exports.infinite_switch_label_test = infinite_switch_label_test;
+});