$using variable should support method call on it #10876
Description
$using: prefixed variables are used in Foreach-Object -Parallel and Start-ThreadJob to pass value of reference types. Given the value is passed by reference, it's natural to call method on it directly in a thread job or script running in another Runspace, and thus we should remove the semantics check and allow expression to be used on the $using: variable.
Steps to reproduce
{ $using:blah.Add() }Expected behavior
No error thrown.
Actual behavior
PS> { $using:blah.Add() }
At line:1 char:3
+ { $using:blah.Add() }
+ ~~~~~~~~~~~~~~~~~
Expression is not allowed in a Using expression.
+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : InvalidUsingExpression
Environment data
Name Value
---- -----
PSVersion 7.0.0-preview.4
PSEdition Core
GitCommitId 7.0.0-preview.4
OS Microsoft Windows 10.0.18363
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0