Add HoldReason to the NIS pallet (#13823)

* Add HoldReason to the NIS pallet

* Rename composable_enum to composite_enum

* Add encoding test

* Add more doc comments

substrate/frame/support/procedural/src/construct_runtime/expand/freeze_reason.rs

@@ -35,6 +35,7 @@ pub fn expand_outer_freeze_reason(pallet_decls: &[Pallet], scrate: &TokenStream)
 	}
 
 	quote! {
+		/// A reason for placing a freeze on funds.
 		#[derive(
 			Copy, Clone, Eq, PartialEq, Ord, PartialOrd,
 			#scrate::codec::Encode, #scrate::codec::Decode, #scrate::codec::MaxEncodedLen,

substrate/frame/support/procedural/src/construct_runtime/expand/hold_reason.rs

@@ -35,6 +35,7 @@ pub fn expand_outer_hold_reason(pallet_decls: &[Pallet], scrate: &TokenStream) -
 	}
 
 	quote! {
+		/// A reason for placing a hold on funds.
 		#[derive(
 			Copy, Clone, Eq, PartialEq, Ord, PartialOrd,
 			#scrate::codec::Encode, #scrate::codec::Decode, #scrate::codec::MaxEncodedLen,

substrate/frame/support/procedural/src/construct_runtime/expand/lock_id.rs

@@ -35,6 +35,7 @@ pub fn expand_outer_lock_id(pallet_decls: &[Pallet], scrate: &TokenStream) -> To
 	}
 
 	quote! {
+		/// An identifier for each lock placed on funds.
 		#[derive(
 			Copy, Clone, Eq, PartialEq, Ord, PartialOrd,
 			#scrate::codec::Encode, #scrate::codec::Decode, #scrate::codec::MaxEncodedLen,

substrate/frame/support/procedural/src/construct_runtime/expand/slash_reason.rs

@@ -35,6 +35,7 @@ pub fn expand_outer_slash_reason(pallet_decls: &[Pallet], scrate: &TokenStream)
 	}
 
 	quote! {
+		/// A reason for slashing funds.
 		#[derive(
 			Copy, Clone, Eq, PartialEq, Ord, PartialOrd,
 			#scrate::codec::Encode, #scrate::codec::Decode, #scrate::codec::MaxEncodedLen,

substrate/frame/support/procedural/src/lib.rs

@@ -1412,7 +1412,7 @@ pub fn origin(_: TokenStream, _: TokenStream) -> TokenStream {
 	pallet_macro_stub()
 }
 
-/// The `#[pallet::composable_enum]` attribute allows you to define an enum that gets composed as an
+/// The `#[pallet::composite_enum]` attribute allows you to define an enum that gets composed as an
 /// aggregate enum by `construct_runtime`. This is similar in principle with `#[pallet::event]` and
 /// `#[pallet::error]`.
 ///
@@ -1431,10 +1431,10 @@ pub fn origin(_: TokenStream, _: TokenStream) -> TokenStream {
 /// ```
 ///
 /// For ease of usage, when no `#[derive]` attributes are found for the enum under
-/// `#[pallet::composable_enum]`, the aforementioned traits are automatically derived for it. The
+/// `#[pallet::composite_enum]`, the aforementioned traits are automatically derived for it. The
 /// inverse is also true: if there are any `#[derive]` attributes found for the enum, then no traits
 /// will automatically be derived for it.
 #[proc_macro_attribute]
-pub fn composable_enum(_: TokenStream, _: TokenStream) -> TokenStream {
+pub fn composite_enum(_: TokenStream, _: TokenStream) -> TokenStream {
 	pallet_macro_stub()
 }