[core] codegen/types: Add docs for NDArrayType::fields

nac3core/src/codegen/types/ndarray.rs

@@ -102,12 +102,13 @@ impl<'ctx> NDArrayType<'ctx> {
         Ok(())
     }
 
-    // TODO: Move this into e.g. StructProxyType
+    /// Returns an instance of [`StructFields`] containing all field accessors for this type.
     #[must_use]
     fn fields(ctx: &'ctx Context, llvm_usize: IntType<'ctx>) -> NDArrayStructFields<'ctx> {
         NDArrayStructFields::new(ctx, llvm_usize)
     }
 
+    /// See [`NDArrayType::fields`].
     // TODO: Move this into e.g. StructProxyType
     #[must_use]
     pub fn get_fields(