rem: HintReplacementDetector::HintReplacementDetector(Type1Font *f, int b) : CharstringInterp(f),
add: HintReplacementDetector::HintReplacementDetector(Type1Font *f, const Vector<double> &wv, int b) : CharstringInterp(f, wv),
context: HintReplacementDetector::HintReplacementDetector(Type1Font *f, int b)    : CharstringInterp(f),      _hint_replacements(f->nsubrs(), 0), _call_counts(f->nsubrs(), 0),      _count_calls_below(b){}