Open Radar

 
Summary:
The provided code, which improperly overloads an identifier, causes the compiler to trap.

Steps to Reproduce:
1. create a new framework project.
2. add the following code to the project in a swift file

public struct Foo {
    typealias Hello = String
    public let apply:(Hello) -> Int
    public func apply(input:Hello) -> Int {
        return apply(input)
    }
}

3. Observe crash

Expected Results:
No crash and a compile error pointing out the mistake of overloading in this manner.

Actual Results:
Command failed due to signal: Abort trap: 6

Regression:
This code built with 6.4 without error or compiler crash.

Notes:
Provide additional information, such as references to related problems, workarounds and relevant attachments.