Breakpoints set in require-d modules not hit

[trogper]

I have created simple "module" printk.lua, which only prints several numbers and exports a function
if I execute it with dofile, breakpoints in the file get hit, but if I require it, the breakpoints don't get hit.
Stepping inside required files works fine, just the breakpoints do not

[trogper]

so I have found out the lua debug interface provides absolute path in source field (file path) for require-d modules/files and relative paths for dofile executed files

[trogper]

I suggest always using absolute paths and prepending path from debuginfo.source() with cwd, when it is relative. I think this would also solve issue #17 and simplify sourceRoot path resolving (see my fork)