Microsoft.VisualStudio.LanguageServices.Implementation.LanguageService.AbstractLanguageService<TPackage, TLanguageService>.CreateContainedLanguage(Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferCoordinator, Microsoft.CodeAnalysis.Workspaces.ProjectSystem.ProjectSystemProject, Microsoft.VisualStudio.Shell.Interop.IVsHierarchy, System.UInt32)