[contracts] stabilize seal_code_hash, seal_set_code_hash and seal_own_code_hash

frame/contracts/fixtures/set_code_hash.wat

@@ -1,7 +1,7 @@
 (module
 	(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
 	(import "seal0" "seal_return" (func $seal_return (param i32 i32 i32)))
-	(import "__unstable__" "seal_set_code_hash" (func $seal_set_code_hash (param i32) (result i32)))
+	(import "seal0" "seal_set_code_hash" (func $seal_set_code_hash (param i32) (result i32)))
 
 	(import "env" "memory" (memory 1 1))
 

frame/contracts/src/benchmarking/mod.rs

@@ -448,7 +448,7 @@ benchmarks! {
 		let code = WasmModule::<T>::from(ModuleDefinition {
 			memory: Some(ImportedMemory::max::<T>()),
 			imported_functions: vec![ImportedFunction {
-				module: "__unstable__",
+				module: "seal0",
 				name: "seal_code_hash",
 				params: vec![ValueType::I32, ValueType::I32, ValueType::I32],
 				return_type: Some(ValueType::I32),
@@ -484,7 +484,7 @@ benchmarks! {
 	seal_own_code_hash {
 		let r in 0 .. API_BENCHMARK_BATCHES;
 		let instance = Contract::<T>::new(WasmModule::getter(
-			"__unstable__", "seal_own_code_hash", r * API_BENCHMARK_BATCH_SIZE
+			"seal0", "seal_own_code_hash", r * API_BENCHMARK_BATCH_SIZE
 		), vec![])?;
 		let origin = RawOrigin::Signed(instance.caller.clone());
 	}: call(origin, instance.addr, 0u32.into(), Weight::MAX, None, vec![])
@@ -2017,7 +2017,7 @@ benchmarks! {
 		let code = WasmModule::<T>::from(ModuleDefinition {
 			memory: Some(ImportedMemory::max::<T>()),
 			imported_functions: vec![ImportedFunction {
-				module: "__unstable__",
+				module: "seal0",
 				name: "seal_set_code_hash",
 				params: vec![
 					ValueType::I32,

frame/contracts/src/tests.rs

@@ -3088,7 +3088,6 @@ fn code_rejected_error_works() {
 }
 
 #[test]
-#[cfg(feature = "unstable-interface")]
 fn set_code_hash() {
 	let (wasm, code_hash) = compile_module::<Test>("set_code_hash").unwrap();
 	let (new_wasm, new_code_hash) = compile_module::<Test>("new_set_code_hash_contract").unwrap();

frame/contracts/src/wasm/mod.rs

@@ -2407,12 +2407,11 @@ mod tests {
 	}
 
 	#[test]
-	#[cfg(feature = "unstable-interface")]
 	fn code_hash_works() {
 		/// calls `seal_code_hash` and compares the result with the constant.
 		const CODE_CODE_HASH: &str = r#"
 (module
-	(import "__unstable__" "seal_code_hash" (func $seal_code_hash (param i32 i32 i32) (result i32)))
+	(import "seal0" "seal_code_hash" (func $seal_code_hash (param i32 i32 i32) (result i32)))
 	(import "env" "memory" (memory 1 1))
 
 	;; size of our buffer is 32 bytes
@@ -2460,12 +2459,11 @@ mod tests {
 	}
 
 	#[test]
-	#[cfg(feature = "unstable-interface")]
 	fn own_code_hash_works() {
 		/// calls `seal_own_code_hash` and compares the result with the constant.
 		const CODE_OWN_CODE_HASH: &str = r#"
 (module
-	(import "__unstable__" "seal_own_code_hash" (func $seal_own_code_hash (param i32 i32)))
+	(import "seal0" "seal_own_code_hash" (func $seal_own_code_hash (param i32 i32)))
 	(import "env" "memory" (memory 1 1))
 
 	;; size of our buffer is 32 bytes
@@ -2546,11 +2544,10 @@ mod tests {
 	}
 
 	#[test]
-	#[cfg(feature = "unstable-interface")]
 	fn set_code_hash() {
 		const CODE: &str = r#"
 (module
-	(import "__unstable__" "seal_set_code_hash" (func $seal_set_code_hash (param i32) (result i32)))
+	(import "seal0" "seal_set_code_hash" (func $seal_set_code_hash (param i32) (result i32)))
 	(import "env" "memory" (memory 1 1))
 	(func $assert (param i32)
 		(block $ok

frame/contracts/src/wasm/runtime.rs

@@ -147,10 +147,8 @@ pub enum RuntimeCosts {
 	/// Weight of calling `seal_is_contract`.
 	IsContract,
 	/// Weight of calling `seal_code_hash`.
-	#[cfg(feature = "unstable-interface")]
 	CodeHash,
 	/// Weight of calling `seal_own_code_hash`.
-	#[cfg(feature = "unstable-interface")]
 	OwnCodeHash,
 	/// Weight of calling `seal_caller_is_origin`.
 	CallerIsOrigin,
@@ -225,7 +223,6 @@ pub enum RuntimeCosts {
 	#[cfg(feature = "unstable-interface")]
 	CallRuntime(Weight),
 	/// Weight of calling `seal_set_code_hash`
-	#[cfg(feature = "unstable-interface")]
 	SetCodeHash,
 	/// Weight of calling `ecdsa_to_eth_address`
 	#[cfg(feature = "unstable-interface")]
@@ -245,9 +242,7 @@ impl RuntimeCosts {
 			CopyToContract(len) => s.input_per_byte.saturating_mul(len.into()),
 			Caller => s.caller,
 			IsContract => s.is_contract,
-			#[cfg(feature = "unstable-interface")]
 			CodeHash => s.code_hash,
-			#[cfg(feature = "unstable-interface")]
 			OwnCodeHash => s.own_code_hash,
 			CallerIsOrigin => s.caller_is_origin,
 			Address => s.address,
@@ -312,7 +307,6 @@ impl RuntimeCosts {
 
 			#[cfg(feature = "unstable-interface")]
 			CallRuntime(weight) => weight,
-			#[cfg(feature = "unstable-interface")]
 			SetCodeHash => s.set_code_hash,
 			#[cfg(feature = "unstable-interface")]
 			EcdsaToEthAddress => s.ecdsa_to_eth_address,
@@ -1401,7 +1395,7 @@ define_env!(Env, <E: Ext>,
 	// # Errors
 	//
 	// `ReturnCode::KeyNotFound`
-	[__unstable__] seal_code_hash(ctx, account_ptr: u32, out_ptr: u32, out_len_ptr: u32) -> ReturnCode => {
+	[seal0] seal_code_hash(ctx, account_ptr: u32, out_ptr: u32, out_len_ptr: u32) -> ReturnCode => {
 		ctx.charge_gas(RuntimeCosts::CodeHash)?;
 		let address: <<E as Ext>::T as frame_system::Config>::AccountId =
 			ctx.read_sandbox_memory_as(account_ptr)?;
@@ -1420,7 +1414,7 @@ define_env!(Env, <E: Ext>,
 	// - `out_ptr`: pointer to the linear memory where the returning value is written to.
 	// - `out_len_ptr`: in-out pointer into linear memory where the buffer length
 	//   is read from and the value length is written to.
-	[__unstable__] seal_own_code_hash(ctx, out_ptr: u32, out_len_ptr: u32) => {
+	[seal0] seal_own_code_hash(ctx, out_ptr: u32, out_len_ptr: u32) => {
 		ctx.charge_gas(RuntimeCosts::OwnCodeHash)?;
 		let code_hash_encoded = &ctx.ext.own_code_hash().encode();
 		Ok(ctx.write_sandbox_output(out_ptr, out_len_ptr, code_hash_encoded, false, already_charged)?)
@@ -2048,7 +2042,7 @@ define_env!(Env, <E: Ext>,
 	// # Errors
 	//
 	// `ReturnCode::CodeNotFound`
-	[__unstable__] seal_set_code_hash(ctx, code_hash_ptr: u32) -> ReturnCode => {
+	[seal0] seal_set_code_hash(ctx, code_hash_ptr: u32) -> ReturnCode => {
 		ctx.charge_gas(RuntimeCosts::SetCodeHash)?;
 		let code_hash: CodeHash<<E as Ext>::T> = ctx.read_sandbox_memory_as(code_hash_ptr)?;
 		match ctx.ext.set_code_hash(code_hash) {