* Implement last_checkpoint_storage_at
* Add reverted_storage_at for externalities
* sstore_clears_count -> sstore_clears_refund
* Implement eip1283 for evm
* Add eip1283Transition params
* evm: fix tests
* jsontests: fix test
* Return checkpoint index when creating
* Comply with spec Version II
* Fix docs
* Fix jsontests feature compile
* Address grumbles
* Fix no-checkpoint-entry case
* Remove unnecessary expect
* Add test for State::checkpoint_storage_at
* Add executive level test for eip1283
* Hard-code transaction_checkpoint_index to 0
* Fix jsontests
* Add tests for checkpoint discard/revert
* Require checkpoint to be empty for kill_account and commit
* Get code coverage
* Use saturating_add/saturating_sub
* Fix issues in insert_cache
* Clear the state again
* Fix original_storage_at
* Early return for empty RLP trie storage
* Update comments
* Fix borrow_mut issue
* Simplify checkpoint_storage_at if branches
* Better commenting for gas handling code
* Address naming grumbles
* More tests
* Fix an issue in overwrite_with
* Add another test
* Fix comment
* Remove unnecessary bracket
* Move orig to inner if
* Remove test coverage for this PR
* Add tests for executive original value
* Add warn! for an unreachable cause
* Add EIP-1014 transition config flag
* Remove EIP-86 configs
* Change CREATE2 opcode index to 0xf5
* Move salt to the last item in the stack
* Change sendersaltandaddress scheme to comply with current EIP-1014
* Fix json configs
* Fix create2 test
* Fix deprecated comments
* Remove pass-by-reference return data value from executive
* Fix tests
* Fix a missing test output
* typo: wasm_activation_test
* Tracing change in output
* json_tests: fix compile
* typo: 0..32 -> ..32 to keep it consistent with other occurance
* Fix tests
* Feed in ActionParams on VM creation
* Fix ethcore after Vm interface change
* Move informant inside Interpreter struct
* Move do_trace to Interpreter struct
* Move all remaining exec variables to Interpreter struct
* Refactor VM to allow single opcode step
* Fix all EVM tests
* Fix all wasm tests
* Fix wasm runner tests
* Fix a check case where code length is zero
* Fix jsontests compile
* Fix cargo lock
* Use match instead of expect
* Use cheaper check reader.len() == 0 for the initial special case
* Get rid of try_and_done! macro by using Result<(), ReturnType>
* Use Never instead of ()
* Fix parity-bytes path
* Bypass gasometer lifetime problem by borrow only for a instance
* typo: missing {
* Fix ethcore test compile
* Fix evm tests
* Comply EIP-86 with the new CREATE2 opcode
* Fix rpc compile
* Fix interpreter CREATE/CREATE2 stack pop difference
* Add unreachable! to fix compile
* Fix instruction_info
* Fix gas check due to new stack item
* Add new tests in executive
* Fix have_create2 comment
* Remove all unused references of eip86_transition and block_number
* Implement EIP-1052 and fix several issues related to account cache
* Fix jsontests
* Merge two matches together
* Avoid making unnecessary Arc<Vec>
* Address grumbles
* Add a basic instruction c-like enum
* Fix all compiling errors
* Fix tests
* Access instruction info as a Instruction impl
* Use macro to avoid duplication in from_u8
* Use single space instead of multiple tabs to avoid formatting issue
* Fix evmbin compile
* typo: indentation
* Use if let to remove an expect
* Address grumbles
* Update `add_license` script
* run script
* add `remove duplicate lines script` and run it
* Revert changes `English spaces`
* strip whitespaces
* Revert `GPL` in files with `apache/mit license`
* don't append `gpl license` in files with other lic
* Don't append `gpl header` in files with other lic.
* re-ran script
* include c and cpp files too
* remove duplicate header
* rebase nit
* Add SHL, SHR, SAR opcodes
* Add have_bitwise_shifting schedule flag
* Add all EIP tests for SHL
* Add SHR implementation and tests
* Implement SAR and add tests
* Add eip145transition config param
* Change map_or to map_or_else when possible
