Check in codegen test expectations.

test/codegen/expect/corelib/iterable_take_while_test.js

Index: test/codegen/expect/corelib/iterable_take_while_test.js
diff --git a/test/codegen/expect/corelib/iterable_take_while_test.js b/test/codegen/expect/corelib/iterable_take_while_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..d89a33a0597f3e0a9026e3257bc2da19d3818a64
--- /dev/null
+++ b/test/codegen/expect/corelib/iterable_take_while_test.js
@@ -0,0 +1,136 @@
+dart_library.library('corelib/iterable_take_while_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__iterable_take_while_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 iterable_take_while_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let JSArrayOfString = () => (JSArrayOfString = dart.constFn(_interceptors.JSArray$(core.String)))();
+  let SetOfint = () => (SetOfint = dart.constFn(core.Set$(core.int)))();
+  let IterableOfint = () => (IterableOfint = dart.constFn(core.Iterable$(core.int)))();
+  let intTobool = () => (intTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.int])))();
+  let StringTobool = () => (StringTobool = dart.constFn(dart.definiteFunctionType(core.bool, [core.String])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let const$;
+  iterable_take_while_test.main = function() {
+    let list1 = JSArrayOfint().of([1, 2, 3]);
+    let list2 = const$ || (const$ = dart.constList([4, 5], core.int));
+    let list3 = JSArrayOfString().of([]);
+    let set1 = SetOfint().new();
+    set1.add(11);
+    set1.add(12);
+    set1.add(13);
+    let set2 = core.Set.new();
+    let takeWhileFalse = list1[dartx.takeWhile](dart.fn(x => false, intTobool()));
+    let it = takeWhileFalse[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    let takeWhileOdd = list1[dartx.takeWhile](dart.fn(x => x[dartx.isOdd], intTobool()));
+    it = takeWhileOdd[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(1, it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    let takeWhileLessThan3 = list1[dartx.takeWhile](dart.fn(x => dart.notNull(x) < 3, intTobool()));
+    it = takeWhileLessThan3[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(1, it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(2, it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    let takeEverything = list1[dartx.takeWhile](dart.fn(x => true, intTobool()));
+    it = takeEverything[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(1, it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(2, it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(3, it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    let takeWhileEven = list1[dartx.takeWhile](dart.fn(x => x[dartx.isEven], intTobool()));
+    it = takeWhileFalse[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    takeWhileFalse = list2[dartx.takeWhile](dart.fn(x => false, intTobool()));
+    it = takeWhileFalse[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    takeWhileEven = list2[dartx.takeWhile](dart.fn(x => x[dartx.isEven], intTobool()));
+    it = takeWhileEven[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(4, it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    takeEverything = list2[dartx.takeWhile](dart.fn(x => true, intTobool()));
+    it = takeEverything[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(4, it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.equals(5, it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    let takeWhileFalse2 = list3[dartx.takeWhile](dart.fn(x => false, StringTobool()));
+    let it2 = takeWhileFalse2[dartx.iterator];
+    expect$.Expect.isNull(it2.current);
+    expect$.Expect.isFalse(it2.moveNext());
+    expect$.Expect.isNull(it2.current);
+    let takeEverything2 = list3[dartx.takeWhile](dart.fn(x => true, StringTobool()));
+    it2 = takeEverything2[dartx.iterator];
+    expect$.Expect.isNull(it2.current);
+    expect$.Expect.isFalse(it2.moveNext());
+    expect$.Expect.isNull(it2.current);
+    takeWhileFalse = set1.takeWhile(dart.fn(x => false, intTobool()));
+    it = takeWhileFalse[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    takeEverything = set1.takeWhile(dart.fn(x => true, intTobool()));
+    let copied = takeEverything[dartx.toList]();
+    expect$.Expect.equals(3, copied[dartx.length]);
+    expect$.Expect.isTrue(set1.contains(copied[dartx.get](0)));
+    expect$.Expect.isTrue(set1.contains(copied[dartx.get](1)));
+    expect$.Expect.isTrue(set1.contains(copied[dartx.get](1)));
+    expect$.Expect.isTrue(copied[dartx.get](0) != copied[dartx.get](1));
+    expect$.Expect.isTrue(copied[dartx.get](0) != copied[dartx.get](2));
+    expect$.Expect.isTrue(copied[dartx.get](1) != copied[dartx.get](2));
+    it = takeEverything[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.isTrue(it.current != null);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.isTrue(it.current != null);
+    expect$.Expect.isTrue(it.moveNext());
+    expect$.Expect.isTrue(it.current != null);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    takeWhileFalse = IterableOfint()._check(set2.takeWhile(dart.fn(x => false, dynamicTobool())));
+    it = takeWhileFalse[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+    takeEverything = IterableOfint()._check(set2.takeWhile(dart.fn(x => true, dynamicTobool())));
+    it = takeEverything[dartx.iterator];
+    expect$.Expect.isNull(it.current);
+    expect$.Expect.isFalse(it.moveNext());
+    expect$.Expect.isNull(it.current);
+  };
+  dart.fn(iterable_take_while_test.main, VoidTodynamic());
+  // Exports:
+  exports.iterable_take_while_test = iterable_take_while_test;
+});