Fix NSUUID::initWithUUIDBytes

Passing `None` doesn't work on older versions of Foundation.

Author: madsmtm

framework-crates/objc2-foundation/src/uuid.rs

@@ -13,7 +13,7 @@ impl RefUnwindSafe for NSUUID {}
 impl NSUUID {
     /// The 'nil UUID'.
     pub fn nil() -> Retained<Self> {
-        Self::initWithUUIDBytes(Self::alloc(), None)
+        Self::from_bytes([0; 16])
     }
 
     /// Create a new `NSUUID` from the given bytes.
@@ -33,7 +33,7 @@ impl NSUUID {
     /// assert_eq!(obj.as_bytes(), uuid.into_bytes());
     /// ```
     pub fn from_bytes(bytes: [u8; 16]) -> Retained<Self> {
-        Self::initWithUUIDBytes(Self::alloc(), Some(&bytes))
+        Self::initWithUUIDBytes(Self::alloc(), &bytes)
     }
 
     #[cfg(feature = "NSString")]

framework-crates/objc2-foundation/translation-config.toml

@@ -312,6 +312,14 @@ class.NSURL.bridged-to = "CoreFoundation.CFURL.CFURL"
 # TODO: Custom-define this bridging (needs extra feature in Cargo.toml)
 # class.NSNumber.bridged-to = "CoreFoundation.CFNumber.?"
 
+##
+## Fix types
+##
+
+# Passing NULL works, but only on later OS versions, doesn't work on e.g.
+# macOS 10.12 or iOS Simulator 17.2.
+class.NSUUID.methods."initWithUUIDBytes:".arguments.0.nullability = "nonnull"
+
 ###
 ### Safety
 ###