Avoid accidentally (indirectly) reading PlatformHelper.Current before setting it (#1254)

BepInEx.Preloader.Core/PlatformUtils.cs

@@ -80,7 +80,12 @@ internal static class PlatformUtils
                 if (wineGetVersion != IntPtr.Zero)
                 {
                     current |= Platform.Wine;
-                    var getVersion = wineGetVersion.AsDelegate<GetWineVersionDelegate>();
+                    // It's not safe to use the AsDelegate() extension method here because:
+                    //  - It comes from the MonoMod.Utils.DynDll class, defined in MonoMod.Common.
+                    //  - The DynDll class has a static constructor that reads PlatformHelper.Current.
+                    //  - Reading from that property freezes it: subsequent writes will throw an exception.
+                    //  - This method only sets PlatformHelper.Current at the very end.
+                    var getVersion = Marshal.GetDelegateForFunctionPointer(wineGetVersion, typeof(GetWineVersionDelegate)) as GetWineVersionDelegate;
                     WineVersion = getVersion();
                 }
             }