Re-target for ES.Next (#3901)

A list of changes:
- 'es2015-subset' profile is deprecated, and an 'es.next' profile is added.
- The default profile is changed to 'es.next'
- Renamed the JERRY_ES2015 guard to JERRY_ESNEXT
- Renamed JERRY_ES2015_BUILTIN_* guards to JERRY_BUILTIN_*
- Moved es2015 specific tests to a new 'es.next' subdirectory
- Updated docs, targets, and test runners to reflect these changes

Resolves #3737.

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu

tests/jerry/es.next/reflect-has.js

@@ -0,0 +1,64 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+assert (Reflect.has ({x: 0}, 'x') === true);
+assert (Reflect.has ({x: 0}, 'y') === false);
+
+assert (Reflect.has ({x: 0}, 'toString') === true);
+
+var object = {
+  prop: 'Apple'
+};
+
+assert (Reflect.has (object, 'prop') === true);
+
+assert (2 === Reflect.has.length);
+
+try {
+  Reflect.has ();
+  assert (false);
+} catch (e) {
+  assert (e instanceof TypeError);
+}
+
+try {
+  Reflect.has (42, 'batcat');
+  assert (false);
+} catch (e) {
+  assert (e instanceof TypeError);
+}
+
+try {
+  Reflect.has (null, 'bat');
+  assert (false);
+} catch (e) {
+  assert (e instanceof TypeError);
+}
+
+var target = {bat: 42};
+var a = { [Symbol.toPrimitive]: function () { return 'bat' } };
+var b = { [Symbol.toPrimitive]: function () { throw 'cat' } };
+
+assert (Reflect.has (target, a) === true);
+
+try {
+  Reflect.has (target, b);
+  assert (false);
+} catch (e) {
+  assert (e === 'cat');
+}