Stabilize seal_debug_message (#9550)

* Stableize `seal_debug_message`

* Update changelog

* Enable more tests

* Cargo fmt

substrate/frame/contracts/src/benchmarking/mod.rs

@@ -1039,7 +1039,7 @@ benchmarks! {
 		let code = WasmModule::<T>::from(ModuleDefinition {
 			memory: Some(ImportedMemory { min_pages: 1, max_pages: 1 }),
 			imported_functions: vec![ImportedFunction {
-				module: "__unstable__",
+				module: "seal0",
 				name: "seal_debug_message",
 				params: vec![ValueType::I32, ValueType::I32],
 				return_type: Some(ValueType::I32),

substrate/frame/contracts/src/tests.rs

@@ -2615,7 +2615,6 @@ fn reinstrument_does_charge() {
 }
 
 #[test]
-#[cfg(feature = "unstable-interface")]
 fn debug_message_works() {
 	let (wasm, code_hash) = compile_module::<Test>("debug_message_works").unwrap();
 
@@ -2638,7 +2637,6 @@ fn debug_message_works() {
 }
 
 #[test]
-#[cfg(feature = "unstable-interface")]
 fn debug_message_logging_disabled() {
 	let (wasm, code_hash) = compile_module::<Test>("debug_message_logging_disabled").unwrap();
 
@@ -2663,7 +2661,6 @@ fn debug_message_logging_disabled() {
 }
 
 #[test]
-#[cfg(feature = "unstable-interface")]
 fn debug_message_invalid_utf8() {
 	let (wasm, code_hash) = compile_module::<Test>("debug_message_invalid_utf8").unwrap();
 

substrate/frame/contracts/src/wasm/mod.rs

@@ -1932,11 +1932,10 @@ mod tests {
 	}
 
 	#[test]
-	#[cfg(feature = "unstable-interface")]
 	fn debug_message_works() {
 		const CODE_DEBUG_MESSAGE: &str = r#"
 (module
-	(import "__unstable__" "seal_debug_message" (func $seal_debug_message (param i32 i32) (result i32)))
+	(import "seal0" "seal_debug_message" (func $seal_debug_message (param i32 i32) (result i32)))
 	(import "env" "memory" (memory 1 1))
 
 	(data (i32.const 0) "Hello World!")
@@ -1959,11 +1958,10 @@ mod tests {
 	}
 
 	#[test]
-	#[cfg(feature = "unstable-interface")]
 	fn debug_message_invalid_utf8_fails() {
 		const CODE_DEBUG_MESSAGE_FAIL: &str = r#"
 (module
-	(import "__unstable__" "seal_debug_message" (func $seal_debug_message (param i32 i32) (result i32)))
+	(import "seal0" "seal_debug_message" (func $seal_debug_message (param i32 i32) (result i32)))
 	(import "env" "memory" (memory 1 1))
 
 	(data (i32.const 0) "\fc")

substrate/frame/contracts/src/wasm/runtime.rs

@@ -69,7 +69,6 @@ pub enum ReturnCode {
 	NotCallable = 8,
 	/// The call to `seal_debug_message` had no effect because debug message
 	/// recording was disabled.
-	#[cfg(feature = "unstable-interface")]
 	LoggingDisabled = 9,
 	/// The call dispatched by `seal_call_runtime` was executed but returned an error.
 	#[cfg(feature = "unstable-interface")]
@@ -175,7 +174,6 @@ pub enum RuntimeCosts {
 	/// Weight of calling `seal_deposit_event` with the given number of topics and event size.
 	DepositEvent { num_topic: u32, len: u32 },
 	/// Weight of calling `seal_debug_message`.
-	#[cfg(feature = "unstable-interface")]
 	DebugMessage,
 	/// Weight of calling `seal_set_rent_allowance`.
 	SetRentAllowance,
@@ -250,7 +248,6 @@ impl RuntimeCosts {
 				.deposit_event
 				.saturating_add(s.deposit_event_per_topic.saturating_mul(num_topic.into()))
 				.saturating_add(s.deposit_event_per_byte.saturating_mul(len.into())),
-			#[cfg(feature = "unstable-interface")]
 			DebugMessage => s.debug_message,
 			SetRentAllowance => s.set_rent_allowance,
 			SetStorage(len) =>
@@ -1748,7 +1745,7 @@ define_env!(Env, <E: Ext>,
 	// not being executed as an RPC. For example, they could allow users to disable logging
 	// through compile time flags (cargo features) for on-chain deployment. Additionally, the
 	// return value of this function can be cached in order to prevent further calls at runtime.
-	[__unstable__] seal_debug_message(ctx, str_ptr: u32, str_len: u32) -> ReturnCode => {
+	[seal0] seal_debug_message(ctx, str_ptr: u32, str_len: u32) -> ReturnCode => {
 		ctx.charge_gas(RuntimeCosts::DebugMessage)?;
 		if ctx.ext.append_debug_buffer("") {
 			let data = ctx.read_sandbox_memory(str_ptr, str_len)?;