convert_type     2015 object.c           v = convert_type(val, tname, method, Qtrue);
convert_type     2031 object.c           v = convert_type(val, tname, method, Qfalse);
convert_type     2048 object.c           v = convert_type(val, "Integer", method, Qtrue);
convert_type     2063 object.c           v = convert_type(val, "Integer", method, Qfalse);
convert_type     2103 object.c           tmp = convert_type(val, "Integer", "to_int", Qfalse);