Fixed TODO: made sure main scope used in variables dumping is unreferenced when code dumper is freed.

Fixed amd64 logging segfault; turns out using same va_args in multiple vprintf calls is not possible.

Variables: implemented limits on number of variables in a scope, the length of variable names, size of variable values and the number of accesible match values.

Enforced limits on string length and handled the finite nature of integers for number parsing and the construction of the AST.