Remove ES_NEXT macro (#4915)

- remove all '#JERRY_ESNEXT' macro
- remove 5.1 build profile, update test runner accordingly (Note: all builtins are turn on by default)
- move tests from tests/jerry/esnext into tests/jerry, concatenate files with same names
- add skiplist to some snapshot tests that were supported only in 5.1
- fix doxygen issues that were hidden before (bc. of es.next macro)

Co-authored-by: Martin Negyokru negyokru@inf.u-szeged.hu
JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

tests/jerry/class-fields2.js

@@ -0,0 +1,139 @@
+// 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.
+
+var count = 0
+class C1 {
+  error = assert(++count === 1)
+  error = function() { throw 40.5 }()
+}
+
+try {
+  new C1
+  assert(false)
+} catch(e) {
+  assert(e === 40.5)
+  assert(count === 1)
+}
+
+count = 0
+class C2 {
+  constructor(a = assert(++count === 1)) {}
+  error = function() { throw "Err" }()
+  error = assert(false)
+}
+
+try {
+  new C2
+  assert(false)
+} catch(e) {
+  assert(e === "Err")
+  assert(count === 1)
+}
+
+count = 0
+var o = {}
+
+class C3 extends class {
+  error = function() { throw o }()
+} {
+  constructor() {
+    assert(++count === 1)
+    super()
+    assert(false)
+  }
+}
+
+try {
+  new C3
+  assert(false)
+} catch (e) {
+  assert(e === o)
+  assert(count === 1)
+}
+
+count = 0
+class C4 {
+  constructor() {
+    assert(++count === 2)
+  }
+  a = assert(++count === 1)
+}
+
+class C5 extends C4 {
+  ok = assert(++count === 3)
+  error = function() { assert(++count === 4); throw "Except" }()
+  never = assert(false)
+}
+
+try {
+  new C5
+  assert(false)
+} catch (e) {
+  assert(e === "Except")
+  assert(count === 4)
+}
+
+count = 0
+o = []
+class C6 {
+  a = assert(++count === 2)
+}
+
+class C7 extends C6 {
+  constructor() {
+    assert(++count === 1)
+    eval('super()')
+    assert(false)
+  }
+  ok = assert(++count === 3)
+  error = function() { assert(++count === 4); throw o }()
+  never = assert(false)
+}
+
+try {
+  new C7
+  assert(false)
+} catch (e) {
+  assert(e === o)
+  assert(count === 4)
+}
+
+var res
+class C8 {
+  /* Create a non-configurable accessor */
+  a = (res = this, Object.defineProperty(this, "b", { get() {} }));
+  b = 6
+}
+
+try {
+  new C8
+  assert(false)
+} catch(e) {
+  assert(e instanceof TypeError)
+  assert(Reflect.ownKeys(res).toString() === "b,a")
+}
+
+class C9 {
+  ["p" + 1]
+  ["p" + 2] = (res = this, Object.freeze(this));
+  p3
+}
+
+try {
+  new C9
+  assert(false)
+} catch(e) {
+  assert(e instanceof TypeError)
+  assert(Reflect.ownKeys(res).toString() === "p1")
+}