Implement the intIfDifferentFromNativeInt builder with BigInt
Implement the intIfDifferentFromNativeInt builder with BigInt

* Using conversion to string as this is only used on 32-bit systems in
  Time.time and adding a int64_t BigInt constructor makes a much bigger change

layus/mozart2,mozart/mozart2,yjaradin/mozart2,eregon/mozart2,layus/mozart2,eregon/mozart2,yjaradin/mozart2,dianacgr/mozart2,mozart/mozart2,mozart/mozart2,layus/mozart2,dianacgr/mozart2,Angeldude/mozart2,Angeldude/mozart2,eregon/mozart2,Angeldude/mozart2,dianacgr/mozart2,yjaradin/mozart2