Add support for new.target (#3469)

Notable changes:
* Extracted the pure JS/builtin and external C method invocations
  into two new methods (`ecma_op_function_call_{simple, external}`).
* Updated parser/scanner to handle "new.target" correctly.
* Added JS test case.

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com

jerry-core/ecma/operations/ecma-eval.c

@@ -99,6 +99,12 @@ ecma_op_eval_chars_buffer (const lit_utf8_byte_t *code_p, /**< code characters b
 
 #if ENABLED (JERRY_ES2015)
   ECMA_CLEAR_SUPER_EVAL_PARSER_OPTS ();
+
+  /* If an eval is used inside the function the info should be propagated. */
+  if (JERRY_CONTEXT (current_new_target) != JERRY_CONTEXT_INVALID_NEW_TARGET)
+  {
+    parse_opts |= ECMA_PARSE_FUNCTION;
+  }
 #endif /* ENABLED (JERRY_ES2015) */
 
   ecma_value_t parse_status = parser_parse_script (NULL,