* Fix various issues detected by megacheck I've ran honnef.co/go/tools/cmd/megacheck and fixed a few of the things that came up there. * Cleanup using Gogland
* proc/native: remove unused utility methods * proc: turn FindFileLocation, FindFunctionLocation, FirstPCAfterPrologue methods into function
- move native backend to pkg/proc/native - move gdbserver backend to pkg/proc/gdbserial - move core dumps backend to pkg/proc/core