GeezerVison

when -NoEnumerate is used. Fixes #5122.

Note: This PR is a compromise that attempts to reconcile PetSerAl's conceptually cleaner, but abandoned #5123 with the conflicting changes in #2038.

#2038 should never have happened and continues to cause problems.

Specifically, the implications of this PR are:

• a single scalar input object is now also passed through when -NoEnumerate is specified, as is desirable

  • the price to pay is that Write-Output -NoEnumerate 1 is now indistinguishable from Write-Output -NoEnumerate -InputObject ([System.Collections.Generic.List[object]]::new((, 1)))

• by changing the -InputObject parameter type from [psobject[] to [object], multi-argument inputs passed without explicit use of -InputObject are now passed through as a [List[object]] instance when using -NoEnumerate, which is an unfortunate side effect of how ValueFromRemainingArguments arguments are reported - see A ValueFromRemainingArguments parameter by default invariably receives a [List[object]] collection rather than a scalar / PowerShell array ([object[]]), as appropriate #4625.