Bring latest changes from internal Mac-Cloud repository from 21 September

images/macos/helpers/Xcode.Helpers.psm1

@@ -91,4 +91,17 @@ function Get-XcodePairsList {
         $result += "$watchName $phoneName"
     }
     return $result
+}
+
+function Test-XcodeStableVersion {
+    param([Parameter(Mandatory)][string]$Version)
+
+    if ($Version -match "beta") {
+        return $false
+    }
+    if ($Version -match "GM") {
+        return $false
+    }
+    
+    return $true
 }