Adding function signature completion - part 4
Used "Enumerable.OrderBy" instead of "List.Sort" for stable sort
Merge pull request #2778 from Benglin/TaskOrderingFix

Fix the indeterminism in task ordering
addressed review comments
Merge pull request #2688 from aparajit-pratap/Intellisense

Added auto-completion of function signatures - Part 4 (Final)
addressed merge conflicts