dotnet/corefx — pull request #246 by sharwell (2014-12-14 03:34:41+00:00)
Title: Enumerate over dictionary keys and values without allocations

## "Work In Progress"

This pull request offers an alternative to #147. It eliminates the allocations when evaluating the `Keys` and `Values` properties of `ImmutableDictionary`, but does so without increasing the allocated size of an `ImmutableDictionary` instance.

The documentation associated with the members created by this pull request do not currently meet my own quality standards, but I sent the pull request before going through that part in detail in order to get early feedback. If the community believes this approach is the desired implementation for this functionality, I will go back through the documentation in detail.