Open Radar

 
Summary:
The following code was valid in Swift 1:
var array = [(Int,Int)]()
array.append((1, 2)) // "error: missing argument for parameter #2 in call" in Swift 2

In Swift 2 Array.append now expects both tuple elements as separate parameters instead of a single tuple parameter:

var array = [(Int,Int)]()
array.append(1, 2)

This looks like a bug.

Steps to Reproduce:
1. Paste the first code example from the description into a Playground.
2. Check the resulting compile error.

Expected Results:
Array.append should require tuple syntax like everywhere else in Swift:
array.append((1, 2)) instead of array.append(1, 2)

Actual Results:
Array.append expects tuple elements to be passed as separate parameters.