This converts the instances of the pattern for which we have a proper
substitution in lit. This will make it easier to replace it
appropriately with Windows equivalents.
This is the lifetime ending variant of fix_lifetime. It is a lie to the
ownership verifier that a value is being consumed along a path. Its intention is
to be used to allow for the static verification of ownership in deallocating
deinits which for compatibility with objective-c have weird ownership behavior.
See the commit merged with this commit for more information.
Saleem Abdulrasool
Michael Gottesman
Roman Levenstein