swift234

[Overload resolution] +1 for binding a literal expression to its default literal type.

Move this computation into the "fixed" part of the scoring, because it
is not actually relative. Collapses the linear-time check down to a
constant-time check based on the locator.

Also, unify the constraint generation logic for all of the basic type
literals (integer, float, character, string) now that we have a common
mapping from expression to literal protocol.


Swift SVN r5590