Fixed #4987 (spellfix for verbose message in CheckClass::noConstructorError)
CheckIO: improved handling of functions returning pointers. Ticket: #4964
Fixed #4733 (defective unusedStructMember warning)
Fixed #4941 (segmentation fault (invalid code) in Tokenizer::setVarId)
CheckIO: fix some %I64 related false positives. Ticket: #4964
Fixed #4991: False Positive - Dangerous usage of 'arr' (not null-terminated)