Added RegExp dotAll flag (#4000)

JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu

tests/jerry/es.next/regexp-dotAll.js

@@ -0,0 +1,46 @@
+// 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 str1 = 'bar\nexample foo example';
+var str2 = 'bare\nxample foo example';
+var regex_with_dotAll_flag = new RegExp ('bar.example','s');
+var regex_without_dotAll_flag = new RegExp ('bar.example');
+
+// testing regexp.prototype.dotAll
+assert (regex_with_dotAll_flag.dotAll == true);
+assert (regex_without_dotAll_flag.dotAll == false);
+
+// basic dotAll flag test
+assert (str1.replace (regex_with_dotAll_flag,'') == " foo example");
+assert (str1.replace (regex_without_dotAll_flag,'') == str1);
+assert (str2.replace (regex_with_dotAll_flag, "") == str2);
+
+// testing dotAll with other flag
+for (let re of [/^.$/su, /^.$/sum]) {
+  assert (re.test("a"));
+  assert (re.test("3"));
+  assert (re.test("π"));
+  assert (re.test("\u2027"));
+  assert (re.test("\u0085"));
+  assert (re.test("\v"));
+  assert (re.test("\f"));
+  assert (re.test("\u180E"));
+  assert (re.test("\u{10300}"));
+  assert (re.test("\n"));
+  assert (re.test("\r"));
+  assert (re.test("\u2028"));
+  assert (re.test("\u2029"));
+  assert (re.test("\uD800"));
+  assert (re.test("\uDFFF"));
+}