Merge pull request #40078 from endlesstravel/fix-print-null-in-array-3

fix crash when pass null in print array in GD.print

modules/mono/glue/GodotSharp/GodotSharp/Core/GD.cs

@@ -84,7 +84,7 @@ namespace Godot
 
         public static void Print(params object[] what)
         {
-            godot_icall_GD_print(Array.ConvertAll(what, x => x?.ToString()));
+            godot_icall_GD_print(Array.ConvertAll(what ?? new object[]{"null"}, x => x != null ? x.ToString() : "null"));
         }
 
         public static void PrintStack()
@@ -94,22 +94,22 @@ namespace Godot
 
         public static void PrintErr(params object[] what)
         {
-            godot_icall_GD_printerr(Array.ConvertAll(what, x => x?.ToString()));
+            godot_icall_GD_printerr(Array.ConvertAll(what ?? new object[]{"null"}, x => x != null ? x.ToString() : "null"));
         }
 
         public static void PrintRaw(params object[] what)
         {
-            godot_icall_GD_printraw(Array.ConvertAll(what, x => x?.ToString()));
+            godot_icall_GD_printraw(Array.ConvertAll(what ?? new object[]{"null"}, x => x != null ? x.ToString() : "null"));
         }
 
         public static void PrintS(params object[] what)
         {
-            godot_icall_GD_prints(Array.ConvertAll(what, x => x?.ToString()));
+            godot_icall_GD_prints(Array.ConvertAll(what ?? new object[]{"null"}, x => x != null ? x.ToString() : "null"));
         }
 
         public static void PrintT(params object[] what)
         {
-            godot_icall_GD_printt(Array.ConvertAll(what, x => x?.ToString()));
+            godot_icall_GD_printt(Array.ConvertAll(what ?? new object[]{"null"}, x => x != null ? x.ToString() : "null"));
         }
 
         public static float Randf()

modules/mono/mono_gd/gd_mono_marshal.cpp

@@ -1035,6 +1035,10 @@ Variant mono_object_to_variant_no_err(MonoObject *p_obj, const ManagedType &p_ty
 }
 
 String mono_object_to_variant_string(MonoObject *p_obj, MonoException **r_exc) {
+	if (p_obj == nullptr) {
+		return String("null");
+	}
+
 	ManagedType type = ManagedType::from_class(mono_object_get_class(p_obj));
 	Variant var = GDMonoMarshal::mono_object_to_variant_no_err(p_obj, type);