[Debugger] Persist located source file paths
|Reported by:||bonefish||Owned by:||anevilyak|
When developing e.g. on Linux and using Debugger in a VM the paths of the source code built into the shared objects' debugging info usually don't match their actual location in Haiku, so that one has to tell Debugger explicitly. Alas Debugger doesn't persist that hint, so that one has to do that every time after Debugger has been started. Persisting the info would make the experience more pleasant.