// Not structurally equal.
System.print([1, 2] == { 1 : 2 })  // expect: false
System.print([1, 2] != { 1 : 2 })  // expect: true

// Not equal to other types.
System.print([1, 2] == 1)         // expect: false
System.print([1, 2] == false)     // expect: false
System.print([1, 2] == "fn 123")  // expect: false
System.print([1, 2] != 1)         // expect: true
System.print([1, 2] != false)     // expect: true
System.print([1, 2] != "fn 123")  // expect: true

// Equal by identity.
var f = [1, 2]
System.print(f == f) // expect: true
System.print(f != f) // expect: false