In principle even that could be solved with better tools (source map files and the like), but I agree, until such tools are universally adopted we're probably s

In principle even that could be solved with better tools (source map files and the like), but I agree, until such tools are universally adopted we're probably stuck with having to work with and store the same formatted code. As it is though correlating line numbers from production logs with current source is often an inexact science due to optimisations or difficulties retrieving the exact same version of the code that was used to produce the build (either because you can't find out the exact build number, or because the correlation between commit hash and build number got lost somewhere, etc.).