Emit error when Config part is imported but without the std feature (#9225)

* Emit error when Config part is imported but without the std feature

* Add UI test for missing std feature on GenesisConfig

* Update frame/support/test/Cargo.toml

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Remove unused imports

* Unify all dummy party checker macros

* Fix

* Dispaly pallet_path::GenesisConfig instead of PalletConfig in error message

* Revert changes to construct_runtime_ui.rs

* Add additional parameter for dummy part checker macro

* Apply suggestions from code review

* fix master merge: update version

* update Cargo.lock

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

substrate/frame/support/test/pallet/src/lib.rs

@@ -0,0 +1,46 @@
+// This file is part of Substrate.
+
+// Copyright (C) 2021 Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+pub use pallet::*;
+
+#[frame_support::pallet]
+pub mod pallet {
+	#[allow(unused_imports)]
+	use frame_support::pallet_prelude::*;
+	#[allow(unused_imports)]
+	use frame_system::pallet_prelude::*;
+
+	#[pallet::pallet]
+	pub struct Pallet<T>(_);
+
+	#[pallet::config]
+	pub trait Config: frame_system::Config {}
+
+	#[pallet::genesis_config]
+	pub struct GenesisConfig {}
+
+	#[cfg(feature = "std")]
+	impl Default for GenesisConfig {
+		fn default() -> Self {
+			Self {}
+		}
+	}
+
+	#[pallet::genesis_build]
+	impl<T: Config> GenesisBuild<T> for GenesisConfig {
+		fn build(&self) {}
+	}
+}