Fixed GetFoldParent to return -1 for all top level lines.
Fixed GetFoldParent to return -1 for all top level lines.

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