Partial Type
Workspace/Solution/ProjectDependencyGraph.cs
Workspace/Solution/ProjectDependencyGraph_AddProject.cs
Workspace/Solution/ProjectDependencyGraph_AddProjectReference.cs
Workspace/Solution/ProjectDependencyGraph_RemoveAllProjectReferences.cs
Workspace/Solution/ProjectDependencyGraph_RemoveProject.cs
Workspace/Solution/ProjectDependencyGraph_RemoveProjectReference.cs