pairs in extensions. The AST here is a little wierd; I don't
really get why there needs to be a PatternBindingDecl here.
It's easy enough to ignore.
Swift SVN r1592
This intentionally changes the mangling of variable getters and
setters so that we can have a reproducible mangling that doesn't
depend on things like the variables names, which is important
for resilience. It's not currently important for subscripting,
although equally I see no reason to mangle in the subscript
pattern name.
Swift SVN r1590
exactly how the arguments are emitted. Introduce a new code path
which emits arguments from existing Explosions (possibly of the wrong
resilience level). Use that code path to implement getter/setter
code for MemberRefExpr l-values. This is just a checkpoint for the
latter two parts, but the ApplyExpr path is working correctly in the
new framework, which is worth a commit.
Swift SVN r1589
