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/proxy_has.js

@@ -0,0 +1,172 @@
+// 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 2015 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.
+
+var target = {};
+var handler = { has (target) {
+  throw 42;
+}};
+
+var proxy = new Proxy(target, handler);
+
+try {
+  // 12.9.3
+  "foo" in proxy;
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+try {
+  // 8.1.1.2.1
+  with (proxy) {
+    p;
+    assert(false);
+  }
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+try {
+  // ecma_op_put_value_lex_env_base/[[HasProperty]]
+  with (proxy) {
+    function a (){}
+    assert(false);
+  }
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+// test basic functionality
+var target = {
+  "target_one": 1
+};
+
+var handler = {
+  has: function(target, prop) {
+    return prop == "present";
+  }
+}
+
+var proxy = new Proxy(target, handler);
+
+assert("present" in proxy === true);
+assert("non_present" in proxy === false);
+
+var target = {
+  foo: 5,
+  bar: 10
+};
+
+var handler = {
+  has: function(target, prop) {
+    if (prop[0] === 'f') {
+      return false;
+    }
+    return prop in target;
+  }
+};
+
+var proxy = new Proxy(target, handler);
+
+assert("foo" in proxy === false);
+assert("bar" in proxy === true);
+
+// test with no trap
+var target = {
+  foo: "foo"
+};
+var handler = {};
+var proxy = new Proxy(target, handler);
+
+assert("foo" in proxy === true);
+
+// test with "undefined" trap
+var target = {
+  foo: "foo"
+};
+var handler = {has: null};
+var proxy = new Proxy(target, handler);
+
+assert("foo" in proxy === true);
+
+// test with invalid trap
+var target = {
+  foo: "foo"
+};
+var handler = {has: 42};
+var proxy = new Proxy(target, handler);
+
+try {
+  "foo" in proxy;
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+// test when target is proxy
+var target = {
+  foo: "foo"
+};
+
+var handler = {
+  has: function(target, prop) {
+    return prop in target;
+  }
+}
+
+var proxy1 = new Proxy(target, handler);
+var proxy2 = new Proxy(proxy1, handler);
+
+assert("foo" in proxy2 === true);
+
+// test when invariants gets violated
+var target = {};
+
+Object.defineProperty(target, "prop", {
+  configurable: false,
+  value: 10
+})
+
+var handler = {
+  has: function(target, prop) {
+    return false;
+  }
+}
+
+var proxy = new Proxy(target, handler);
+
+try {
+  'prop' in proxy;
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+var target = { a: 10 };
+Object.preventExtensions(target);
+
+var proxy = new Proxy(target, handler);
+
+try {
+  'a' in proxy;
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}