- further fixes of inccorect overflow errors for int (and long on LLP64 systems) * prev commit had bugs * added overflow tests for also int, long, long long (for both, lp64 and llp64) - while at it, fixing a reference leak when not using python with utf8 caching

1. library resource management

  lib

  funcs ref libs

2. mode selection



callvm = dc.newCallVM()

callvm:mode(dc.DEFAULT_C)
callvm:call(f, "iSSi)v", 1, 2, 3, 4)

callvm:call