Assigning to an array literal of variables (LHS) should support Deconstruct methods #7471
Description
Steps to reproduce
$tuple = [Tuple]::Create(1, 1)
$item1, $item2 = $tupleExpected behavior
Tuple.Item1 is assigned to $item1 and Tuple.Item2 is assigned to $item2
Actual behavior
$tuple is assigned to $item1
Environment data
> $PSVersionTable
Name Value
---- -----
PSVersion 6.1.0-preview.4
PSEdition Core
GitCommitId 6.1.0-preview.4
OS Microsoft Windows 10.0.15063
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0While Tuple types aren't used frequently in PowerShell there are a few other default types that have Deconstruct methods like DictionaryEntry and KeyValuePair<,>.