Step 1: 
A) Replace `ecma_value_t` with `jerry_value_t`.
B) Remove the `JERRY_ASSERT` macro call at line 7.
C) Add a check for `NULL` before using the function pointer at line 2.
D) Replace the `uint32_t` argument type with `size_t`.
E) Use `ecma_is_lexical_environment` to check whether the `func_obj_p` is a lexical environment instead of checking for `NULL`.