parse_pos_info failed.

[yyc12345]

After the fix of #3 . I immediately migrate this project into Virtools 5 platform and try to decode a script called vt2obj.
However it throw a runtime error at parse_pos_info in Parser.cpp.
The assert assert(p <= end && end - p <= 3 * 4); failed and reason is that end - p is 0x10, not 3 * 4.

It seems that this is a new issue and not related to #3 . So I open a new issue here.

Reproduce steps: Decompress the zip I attached and use VSDTest5.cmo to load VSDTest5.1.cmo to get this error.
VSDTest.zip