Fix jerry_get_value_from_error (#2394)

Fix the function to take into account the second argument even if it is called with not
an error value.

JerryScript-DCO-1.0-Signed-off-by: Istvan Miklos imiklos2@inf.u-szeged.hu

jerry-core/api/jerry.c

@@ -921,7 +921,7 @@ jerry_get_value_from_error (jerry_value_t value, /**< api value */
 
   if (!ecma_is_value_error_reference (value))
   {
-    return value;
+    return release ? value : ecma_copy_value (value);
   }
 
   jerry_value_t ret_val = jerry_acquire_value (ecma_get_error_reference_from_value (value)->value);