Add Aliases to the properties shown up when formatting the help content of the parameter returned by Get-Help (#20994)

src/System.Management.Automation/FormatAndOutput/DefaultFormatters/Help_format_ps1xml.cs

@@ -350,7 +350,7 @@ if (($_.relatedLinks -ne $()) -and ($_.relatedLinks.navigationLink -ne $()) -and
                             .AddNewline()
                             .AddText(HelpDisplayStrings.ParameterPosition)
                             .AddScriptBlockExpressionBinding(@" ", selectedByScript: @"($_.position -eq  $()) -or ($_.position -eq '')", customControl: control7)
-                            .AddScriptBlockExpressionBinding(@"$_.position", selectedByScript: "$_.position  -ne  $()")
+                            .AddScriptBlockExpressionBinding(@"$_.position", selectedByScript: "$_.position -ne $()")
                             .AddNewline()
                             .AddText(HelpDisplayStrings.ParameterDefaultValue)
                             .AddPropertyExpressionBinding(@"defaultValue")
@@ -358,6 +358,9 @@ if (($_.relatedLinks -ne $()) -and ($_.relatedLinks.navigationLink -ne $()) -and
                             .AddText(HelpDisplayStrings.AcceptsPipelineInput)
                             .AddPropertyExpressionBinding(@"pipelineInput")
                             .AddNewline()
+                            .AddText(HelpDisplayStrings.ParameterAliases)
+                            .AddPropertyExpressionBinding(@"aliases")
+                            .AddNewline()
                             .AddText(HelpDisplayStrings.AcceptsWildCardCharacters)
                             .AddPropertyExpressionBinding(@"globbing", customControl: MamlTrueFalseShortControl)
                             .AddNewline()

test/powershell/engine/Help/HelpSystem.Tests.ps1

@@ -112,6 +112,15 @@ Describe "Validate that get-help works for CurrentUserScope" -Tags @('CI') {
             $help.Description | Out-String | Should -Match $cmdletName
             $help.Examples | Out-String | Should -Match $cmdletName
         }
+
+        It "Validate 'Aliases' is present in help content formatting" {
+            ## The parameter help content should be formatted with the following section:
+            ##   Accept pipeline input?       xxxx
+            ##   Aliases                      NoOverwrite
+            ##   Accept wildcard characters?  xxxx
+            $output = Get-Help Import-Module -Parameter NoClobber | Out-String
+            $output | Should -Match "Accept pipeline input\?.*\n\s+Aliases\s+NoOverwrite.*\n\s+Accept wildcard characters\?.*"
+        }
     }
 }