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/date-construct.js

@@ -75,3 +75,55 @@ catch (e)
 
 assert (typeof Date (2015) == "string");
 assert (typeof Date() != typeof (new Date ()));
+
+var sym = Symbol();
+var date;
+
+try {
+  date = new Date(sym, 11, 17, 3, 24, 0);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  date = new Date(1997, sym, 17, 3, 24, 0);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  date = new Date(1997, 11, sym, 3, 24, 0);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  date = new Date(1997, 11, 17, sym, 24, 0);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  date = new Date(1997, 11, 17, 3, sym, 0);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  date = new Date(1997, 11, 17, 3, 24, sym);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  date = new Date(1997, 11, 17, 3, 24, 0, sym);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}