Cumulus changes version 2 (#2313)

* ensure imbalances are properly accounted for (#2183)

* ensure imbalances are properly accounted for

* bump runtime version

* Update node/runtime/src/lib.rs

* implement contract events (#2161)

* implement contract events

* update runtime

* renaming

* update test code hash

* improve complexity details

* add deposit event base cost

* add test

* Revert "add deposit event base cost"

This reverts commit 58ec010c0f4f4f0e16935ad41da32aedd17a8c57.

* update test

* Revert "update test"

This reverts commit 6fe61a593ccf0d41f09a0b97472b28ed8751a999.

* Revert "Revert "add deposit event base cost""

This reverts commit 145e8a9bac15313a4c380aa66b94fd4d36fa3f6d.

* Fix format a bit

*  Replace Vec<u8> with [u8; 32] for contract storage key (#2184)

* Replace Vec<u8> with [u8; 32] for contract storage key

* Read storage keys from sandbox memory into fixed size buffer

* Increment `impl_version`

* Remove redundant Ok(()) and explicitly specify StorageKey buffer type (#2188)

* Switch to `derive(Encode, Decode)` for `Call` (#2178)

* Add some tests

* More tests

* Switch to `derive(Encode, Decode)` for `Call`

* Update lock files

* Simplify the macro cases

* Cache changes trie config in db storage (#2170)

* cache changes trie config in db storage

* Update core/client/db/src/lib.rs

Co-Authored-By: svyatonik <svyatonik@gmail.com>

* Update core/client/db/src/lib.rs

Co-Authored-By: svyatonik <svyatonik@gmail.com>

* Fix version check for renamed runtime api methods (#2190)

* Add feature to disable including the test-runtime wasm blob

* Enable `std` feature for `consensus_authorities`

* Implement `skip_initialize_block` and `initialize_block` for runtime api

* Add test and fixes bug

* Begin to implement support for passing the `ProofRecorder`

* Make sure proof generation works as intended

* Fixes tests

* Make `BlockBuilder` generate proofs on request.

* Adds `TestClientBuilder` to simplify creating a test client

* Add `include-wasm-blob` to `test-client` as well

* Make `test-client` compile without including the wasm file

* Disable more stuff in test-client without wasm

* Reorganize the re-exports

* Use correct bounds

* Update docs

* Update core/client/src/block_builder/block_builder.rs

Co-Authored-By: bkchr <bkchr@users.noreply.github.com>

* Extend test to actually generated proof

* Switch to enum for `skip_initialize_block`

* Some wasm files updates

substrate/core/test-runtime/src/system.rs

@@ -35,7 +35,7 @@ const BALANCE_OF: &[u8] = b"balance:";
 storage_items! {
 	ExtrinsicData: b"sys:xtd" => required map [ u32 => Vec<u8> ];
 	// The current block number being processed. Set by `execute_block`.
-	Number: b"sys:num" => required BlockNumber;
+	Number: b"sys:num" => BlockNumber;
 	ParentHash: b"sys:pha" => required Hash;
 	NewAuthorities: b"sys:new_auth" => Vec<AuthorityId>;
 }
@@ -70,6 +70,14 @@ pub fn initialize_block(header: &Header) {
 	storage::unhashed::put(well_known_keys::EXTRINSIC_INDEX, &0u32);
 }
 
+pub fn get_block_number() -> Option<BlockNumber> {
+	Number::get()
+}
+
+pub fn take_block_number() -> Option<BlockNumber> {
+	Number::take()
+}
+
 /// Actually execute all transitioning for `block`.
 pub fn polish_block(block: &mut Block) {
 	let header = &mut block.header;
@@ -167,7 +175,9 @@ pub fn validate_transaction(utx: Extrinsic) -> TransactionValidity {
 		let mut deps = Vec::new();
 		deps.push(hash(&tx.from, tx.nonce - 1));
 		deps
-	} else { Vec::new() };
+	} else {
+		Vec::new()
+	};
 
 	let provides = {
 		let mut p = Vec::new();
@@ -200,7 +210,7 @@ pub fn finalize_block() -> Header {
 	let txs = txs.iter().map(Vec::as_slice).collect::<Vec<_>>();
 	let extrinsics_root = enumerated_trie_root::<Blake2Hasher>(&txs).into();
 
-	let number = <Number>::take();
+	let number = <Number>::take().expect("Number is set by `initialize_block`");
 	let parent_hash = <ParentHash>::take();
 	let storage_root = BlakeTwo256::storage_root();
 	let storage_changes_root = BlakeTwo256::storage_changes_root(parent_hash, number - 1);