Adds field to breakpoint struct to track how a breakpoint was
originally set, moves the logic for disabling and enabling a breakpoint
to proc.
This will allow creating suspended breakpoints that are automatically
enabled when a plugin is loaded. When follow exec mode is implemented
it will also be possible to automatically enable breakpoints (whether
or not they were suspended) on new child processes, as they are
spawned.
It also improves breakpoint restore after a restart, before this after
a restart breakpoints would be re-enabled using their file:line
position, for breakpoints set using a function name or a location
expression this could be the wrong location after a recompile.
Updates #1653
Updates #2551
Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.