[SR-13056] Equality of Void via AnyObject only checks for pointer equality

[swift-ci]

Previous ID	SR-13056
Radar	None
Original Reporter	jaspa (JIRA User)
Type	Bug

Attachment: Download

Environment

Apple Swift version 5.2.4 (swiftlang-1103.0.32.9 clang-1103.0.32.53)
Target: x86_64-apple-darwin19.5.0

Additional Detail from JIRA

Votes	0
Component/s	Compiler, Foundation
Labels	Bug, Runtime
Assignee	None
Priority	Medium

md5: bdaa20b6bf7a6aef772d4ccd188017e9

Issue Description:

Compare this

import Foundation
let unit: () = ()
let unitAny = unit as Any
let unitObject1 = unit as AnyObject
let unitObject2 = unit as AnyObject
unit == unit                      // true
unitObject1.isEqual(unit)         // false
unitObject1.isEqual(unitObject1)  // true
unitObject1.isEqual(unitObject2)  // false

with

import Foundation
let num = 12345678987
let numAny = num as Any
let numObject1 = num as AnyObject
let numObject2 = num as AnyObject
num == num                      // true
numObject1.isEqual(num)         // true
numObject1.isEqual(numObject1)  // true
numObject1.isEqual(numObject2)  // true

I expect all expression in the first code block to be true analogous to the second code block.