Return a read-only list of Directories resolved as absolute, in the context of the current machine and the current project.
In this situation, if a directory cannot be resolved to absolute (like for example the relative directory "..\..\Dir0" cannot be resolved from "C:\Dir1\Project.ndproj"), it doesn't appears in the returned collection of paths.
The list returned is a read-only clone. Hence it doesn't reflect any modification in the original collection.

Reference

IProjectCodeToAnalyze Interface
IProjectCodeToAnalyze Members