De-randomize type order in generated code
De-randomize type order in generated code

Fixes #107

skatsuta/msgp,jfbus/msgp,eliothedeman/msgp,mengzhuo/msgp,DrGo/msgp,kgrz/msgp,tinylib/msgp,ebfe/msgp,darvik80/msgp,appneta/msgp,dockbiz/msgp,appneta/msgp,tinylib/msgp