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/object-literal-super.js

@@ -0,0 +1,132 @@
+// 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 setter1_called = false;
+var setter2_called = false;
+
+var obj1 = {
+  method1() {
+    return 1;
+  },
+  ['method2']() {
+    return 2;
+  },
+  *method3() {
+    return 3;
+  },
+  *['method4']() {
+    return 4;
+  },
+  get getter1() {
+    return 5;
+  },
+  get ['getter2']() {
+    return 6;
+  },
+  set setter1(rhs) {
+    setter1_called = true;
+    assert(rhs === 7);
+  },
+  set ['setter2'](rhs) {
+    setter2_called = true;
+    assert(rhs === 8);
+  },
+}
+
+var obj2 = {
+  method1() {
+    return super.method1();
+  },
+  ['method2']() {
+    return super.method2();
+  },
+  *method3() {
+    return super.method3();
+  },
+  *['method4']() {
+    return super.method4();
+  },
+  get getter1() {
+    return super.getter1;
+  },
+  get ['getter2']() {
+    return super.getter2;
+  },
+  set setter1(rhs) {
+    super.setter1 = rhs;
+  },
+  set ['setter2'](rhs) {
+    super.setter2 = rhs;
+  },
+  __proto__: obj1,
+}
+
+assert(obj2.method1() === 1);
+assert(obj2.method2() === 2);
+assert(obj2.method3().next().value.next().value === 3);
+assert(obj2.method4().next().value.next().value === 4);
+
+assert(obj2.getter1 === 5);
+assert(obj2.getter2 === 6);
+
+obj2.setter1 = 7;
+assert(setter1_called);
+obj2.setter2 = 8;
+assert(setter2_called);
+
+let obj3 = {
+  a() {
+    return 9;
+  }
+}
+
+let obj4 = {
+  a() {
+    return eval('super.a()');
+  },
+  __proto__: obj3,
+}
+
+assert(obj4.a() === 9);
+
+let obj5 = {
+  a() {
+    return (_ => super.a())();
+  },
+  __proto__: obj3,
+}
+
+assert(obj5.a() === 9);
+
+let obj6 = {
+  a() {
+    return (_ => _ => super.a())()();
+  },
+  __proto__: obj3,
+}
+
+assert(obj6.a() === 9);
+
+
+function checkSyntax(src) {
+  try {
+    eval(src);
+    assert(false);
+  } catch (e) {
+    assert(e instanceof SyntaxError);
+  }
+}
+
+checkSyntax('({ a : function () { super.a }})')
+checkSyntax('({ [\'a\'] : function () { super.a }})')