EIP 1884: Repricing for trie-size-dependent opcodes

[tkstanczak]

Suggested 1884 issue solution (stipend context)

EIP-1884 Solution 1) (stipend fix only) The idea is to use the fact that when calling with a non-zero value, 9000 gas is used instead of 700. Moreover this 9000 is calculated as a cost of the caller and callee account balance updates (two state updates). Since these accounts will be cached by the clients, an attacker would have to keep calling a different predeployed contract each time to take advantage of the discounts proposed below in a loop and (in order to cause clients to load and upda…