Simplify source evaluation options. (#2431)

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

docs/02.API-REFERENCE.md

@@ -970,12 +970,12 @@ Perform JavaScript `eval`.
 jerry_value_t
 jerry_eval (const jerry_char_t *source_p,
             size_t source_size,
-            bool is_strict);
+            uint32_t parse_opts);
 ```
 
 - `source_p` - source code to evaluate, it must be a valid utf8 string.
 - `source_size` - length of the source code
-- `is_strict` - perform `eval` as it is called from "strict mode" code.
+- `parse_opts` - any combination of [jerry_parse_opts_t](#jerry_parse_opts_t) flags.
 - return value - result of eval, may be error value.
 
 **Example**
@@ -984,7 +984,7 @@ jerry_eval (const jerry_char_t *source_p,
 {
   jerry_value_t ret_val = jerry_eval (str_to_eval,
                                       strlen (str_to_eval),
-                                      false);
+                                      JERRY_PARSE_NO_OPTS);
 }
 ```