Implement BigInt primitve type and some of its operations (#4062)

Supported operations:
- parse BigInt (decimal, hexadecimal, binary)
- toString with any radix between 2 and 36
- arithmetic operations: negate, add, subtract, multiply, divide, modulo
- left and right shift

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

jerry-core/ecma/builtin-objects/ecma-builtin-bigint.inc.h

@@ -0,0 +1,47 @@
+/* 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.
+ */
+
+/*
+ * BigInt built-in description
+ */
+
+#include "ecma-builtin-helpers-macro-defines.inc.h"
+
+#if ENABLED (JERRY_BUILTIN_BIGINT)
+
+/* Number properties:
+ *  (property name, number value, writable, enumerable, configurable) */
+
+/* ECMA-262 v11, 20.2.1 */
+NUMBER_VALUE (LIT_MAGIC_STRING_LENGTH,
+              1,
+              ECMA_PROPERTY_FLAG_CONFIGURABLE)
+
+/* ECMA-262 v11, 20.2.1 */
+STRING_VALUE (LIT_MAGIC_STRING_NAME,
+              LIT_MAGIC_STRING_BIGINT_UL,
+              ECMA_PROPERTY_FLAG_CONFIGURABLE)
+
+/* Object properties:
+ *  (property name, object pointer getter) */
+
+/* ECMA-262 v11, 20.2.2.3 */
+OBJECT_VALUE (LIT_MAGIC_STRING_PROTOTYPE,
+              ECMA_BUILTIN_ID_BIGINT_PROTOTYPE,
+              ECMA_PROPERTY_FIXED)
+
+#endif /* ENABLED (JERRY_BUILTIN_BIGINT) */
+
+#include "ecma-builtin-helpers-macro-undefs.inc.h"