Check in codegen test expectations.

test/codegen/expect/corelib/iterable_tostring_test.js

Index: test/codegen/expect/corelib/iterable_tostring_test.js
diff --git a/test/codegen/expect/corelib/iterable_tostring_test.js b/test/codegen/expect/corelib/iterable_tostring_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..2ff5c64993ab4ad5a34e14945bd6631620a911cf
--- /dev/null
+++ b/test/codegen/expect/corelib/iterable_tostring_test.js
@@ -0,0 +1,62 @@
+dart_library.library('corelib/iterable_tostring_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__iterable_tostring_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const collection = dart_sdk.collection;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const iterable_tostring_test = Object.create(null);
+  let intTodynamic = () => (intTodynamic = dart.constFn(dart.functionType(dart.dynamic, [core.int])))();
+  let intToint = () => (intToint = dart.constFn(dart.definiteFunctionType(core.int, [core.int])))();
+  let int__ToString = () => (int__ToString = dart.constFn(dart.definiteFunctionType(core.String, [core.int], [dart.dynamic])))();
+  let dynamicToString = () => (dynamicToString = dart.constFn(dart.definiteFunctionType(core.String, [dart.dynamic])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  iterable_tostring_test.mkIt = function(len, func) {
+    if (func === void 0) func = null;
+    let list = null;
+    if (func == null) {
+      list = core.List.generate(len, dart.fn(x => x, intToint()));
+    } else {
+      list = core.List.generate(len, intTodynamic()._check(func));
+    }
+    return new iterable_tostring_test.MyIterable(core.Iterable._check(list)).toString();
+  };
+  dart.fn(iterable_tostring_test.mkIt, int__ToString());
+  const _base = Symbol('_base');
+  iterable_tostring_test.MyIterable = class MyIterable extends collection.IterableBase {
+    new(base) {
+      this[_base] = base;
+      super.new();
+    }
+    get iterator() {
+      return this[_base][dartx.iterator];
+    }
+  };
+  dart.addSimpleTypeTests(iterable_tostring_test.MyIterable);
+  dart.setSignature(iterable_tostring_test.MyIterable, {
+    constructors: () => ({new: dart.definiteFunctionType(iterable_tostring_test.MyIterable, [core.Iterable])})
+  });
+  dart.defineExtensionMembers(iterable_tostring_test.MyIterable, ['iterator']);
+  iterable_tostring_test.main = function() {
+    expect$.Expect.equals("()", iterable_tostring_test.mkIt(0));
+    expect$.Expect.equals("(0)", iterable_tostring_test.mkIt(1));
+    expect$.Expect.equals("(0, 1)", iterable_tostring_test.mkIt(2));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8)", iterable_tostring_test.mkIt(9));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1" + "2, 13, 14, 15, 16, 17, 18, ..., 98, 99)", iterable_tostring_test.mkIt(100));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1" + "2, 13, 14, 15, 16, 17, 18)", iterable_tostring_test.mkIt(19));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1" + "2, 13, 14, 15, 16, 17, 18, 19)", iterable_tostring_test.mkIt(20));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1" + "2, 13, 14, 15, 16, 17, 18, 19, 20)", iterable_tostring_test.mkIt(21));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1" + "2, 13, 14, 15, 16, 17, 18, 19, 20, ...)", iterable_tostring_test.mkIt(101));
+    expect$.Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1" + "2, 13, ..., 18, xxxxxxxxxxxxxxxxxxxx)", iterable_tostring_test.mkIt(20, dart.fn(x => dart.equals(x, 19) ? "xxxxxxxxxxxxxxxxxxxx" : dart.str`${x}`, dynamicToString())));
+    expect$.Expect.equals("(xxxxxxxxxxxxxxxxx, xxxxxxxxxxxxxxxxx, x" + "xxxxxxxxxxxxxxxx, ..., 18, xxxxxxxxxxxxx" + "xxxx)", iterable_tostring_test.mkIt(20, dart.fn(x => dart.test(dart.dsend(x, '<', 3)) || dart.equals(x, 19) ? "xxxxxxxxxxxxxxxxx" : dart.str`${x}`, dynamicToString())));
+    expect$.Expect.equals("(xxxxxxxxxxxxxxxxx, xxxxxxxxxxxxxxxxx, x" + "xxxxxxxxxxxxxxxx, ..., xxxxxxxxxxxxxxxxx" + ", 19)", iterable_tostring_test.mkIt(20, dart.fn(x => dart.test(dart.dsend(x, '<', 3)) || dart.equals(x, 18) ? "xxxxxxxxxxxxxxxxx" : dart.str`${x}`, dynamicToString())));
+    expect$.Expect.equals("(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx," + " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx," + " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx," + " ..., 98, 99)", iterable_tostring_test.mkIt(100, dart.fn(x => dart.test(dart.dsend(x, '<', 3)) ? "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" : dart.str`${x}`, dynamicToString())));
+    expect$.Expect.equals("(, , , , , , , , , , , , , , , , , , , ," + " , , , , , , , , , , , , , , , ..., , )", iterable_tostring_test.mkIt(100, dart.fn(_ => "", dynamicToString())));
+  };
+  dart.fn(iterable_tostring_test.main, VoidTovoid());
+  // Exports:
+  exports.iterable_tostring_test = iterable_tostring_test;
+});