When developing your mod you may want to get line numbers in your stack trace.
This mod replaces the mono-2.0-bdwgc.dll file within MonoBleedingEdge/EmbedRuntime of the game's files. This will degrade performance slightly, but will allow all mods that use the Portable debug type to have line numbers.
If you've used the template to create your mod, simply build with the "Debug" release candidate to have DebugType set to portable.