First of all I'm aware of Modifying the code while debugging in VS 2010 and other similar questions, but that don't help me.
I do know what is Edit&Continue, but I have to use x64 code, so E&C is not an option :c + E&C has soe limitations, like creating loops, etc.
What I want -- simply allow me to modify code, but perform debug like file wasn't changed. Recompile only on next build (something like that what we have in C++)
For example I'd like to add some comments