Hi, thanks for posting.
NCrunch uses the compiler's debug output to determine lines of code. It has no real 'knowledge' of the code itself - rather it interprets the output of the compiler and marks out physical lines where the debugging information exists.
Most likely the change you've observed is caused by the introduced of VS 2015's new C# Compiler, Roslyn. It would seem that Roslyn is now emitting debug data for auto properties - which is something that the previous C# compiler didn't do.
I'm afraid that from the side of NCrunch, there is nothing here to 'fix', in the sense that as long as code has debug data available, it can be tracked and represented as a physical line of code.
Is this behaviour causing problems for you somehow?