Re-land beginning Dart 2.0 test migration.

tests/corelib/apply_test.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-import "symbol_map_helper.dart";
-
-// Testing Function.apply calls correctly.
-// This test is not testing error handling, only that correct parameters
-// cause a correct call.
-
-int test0() => 42;
-int test0a({int a}) => 37 + a;
-int test1(int i) => i + 1;
-int test1a(int i, {int a}) => i + a;
-int test2(int i, int j) => i + j;
-int test2a(int i, int j, {int a}) => i + j + a;
-
-class C {
-  int x = 10;
-  int foo(y) => this.x + y;
-}
-
-class Callable {
-  int call(int x, int y) => x + y;
-}
-
-@NoInline()
-@AssumeDynamic()
-confuse(x) => x;
-
-main() {
-  testMap(res, func, map) {
-    map = symbolMapToStringMap(map);
-    Expect.equals(res, Function.apply(func, null, map));
-    Expect.equals(res, Function.apply(func, [], map));
-  }
-
-  testList(res, func, list) {
-    Expect.equals(res, Function.apply(func, list));
-    Expect.equals(res, Function.apply(func, list, null));
-    Expect.equals(res, Function.apply(func, list, new Map<Symbol, dynamic>()));
-  }
-
-  test(res, func, list, map) {
-    map = symbolMapToStringMap(map);
-    Expect.equals(res, Function.apply(func, list, map));
-  }
-
-  testList(42, test0, null);
-  testList(42, test0, []);
-  testMap(42, test0a, {"a": 5});
-  testList(42, test1, [41]);
-  test(42, test1a, [20], {"a": 22});
-  testList(42, test2, [20, 22]);
-  test(42, test2a, [10, 15], {"a": 17});
-
-  // Test that "this" is correct when calling closurized functions.
-  var cfoo = new C().foo;
-  testList(42, cfoo, [32]);
-
-  // Test that apply works even with a different name.
-  var app = confuse(Function.apply);
-  Expect.equals(42, app(test2, [22, 20]));
-
-  // Test that apply can itself be applied.
-  Expect.equals(
-      42,
-      Function.apply(Function.apply, [
-        test2,
-        [17, 25]
-      ]));
-
-  // Test that apply works on callable objects.
-  testList(42, new Callable(), [13, 29]);
-}