Switch parameter type to sptr_t to avoid problems with negative numbers like INVALID_POSITION=-1. From John Ehresman.
Switch parameter type to sptr_t to avoid problems with negative numbers like
INVALID_POSITION=-1.
From John Ehresman.

R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone