Open Radar

 
Summary:
When specifying a weak self in a closure (e.g. [weak self] in), trying to unwrap self and call a method on an ivar (self?.ivar.method()) fails to compile.

Steps to Reproduce:
1. Open a new Swift file and enter this code:

class Foo
{
    func hello()
    {
        println("hello world")
    }
}

class Bar
{
    func call(c: () -> ())
    {
        c()
    }
}

class X
{
    var f = Foo()
    
    func abc() {
        var bb = Bar()
        
        bb.call {
            [weak self] in
            self?.f.hello()
        }
    }
}

var y = X()
y.abc()

Expected Results:
The program should compile, and when run, should output "hello world"

Actual Results:
error: could not find member 'hello'
        bb.call {
        ~~~^~~~~~