swift234

Using numbering of parameters to cope with Objective-C selector identifiers.

This maps methods with selectors that have repeated names, such
as performSelector:withObject:withObject:, to function types for which
one can meaningfully call with named arguments. Once an identifier has
been seen as a parameter name, subsequent parameters will have a
number appended to them, so we'll end up with calls like

  foo.performSelector(sel, withObject=x, withObject2=y)





Swift SVN r3645