* better SET_ERROR to show PC%d and better error strings to show R%d and C function name
* line 463 in MakeBoolean
    WHY I commentted this line 483 to avoid a memory leak, but may cause logic expression output error
    see 3021e9c06036fc9aa140777b5f92e56f1d6a50cd
    use this commit and last to do a full -fc