Upgrade hardhat and ethers (london hf) (#131)

* Upgrade hardhat, ethers & typechain related deps for London HF
* Remove misc typechain file modification scripts 
* Permanently fix gas as string in Vyper abis / update typescript, hardhat-ethers
* Remove un-used hardhat dependencies 
* Use qualified library name instead of hashed link for typechain lib linking

Author: cgewecke

.circleci/config.yml

@@ -3,7 +3,7 @@ version: 2
 jobs:
   checkout_and_compile:
     docker:
-      - image: circleci/node:10.16.0
+      - image: circleci/node:12.16.0
         environment:
           NODE_OPTIONS: --max_old_space_size=8192
     resource_class: large
@@ -31,7 +31,7 @@ jobs:
             - ~/set-protocol-v2
   test:
     docker:
-      - image: circleci/node:10.16.0
+      - image: circleci/node:12.16.0
     working_directory: ~/set-protocol-v2
     parallelism: 3
     steps:
@@ -52,7 +52,7 @@ jobs:
 
   test_forked_network:
     docker:
-      - image: circleci/node:10.16.0
+      - image: circleci/node:12.16.0
     working_directory: ~/set-protocol-v2
     steps:
       - restore_cache:
@@ -66,7 +66,7 @@ jobs:
 
   coverage:
     docker:
-      - image: circleci/node:10.11.0
+      - image: circleci/node:12.16.0
     working_directory: ~/set-protocol-v2
     # When changing the parallelism value, you also
     # need to update the `persist_to_workspace` paths
@@ -104,7 +104,7 @@ jobs:
 
   report_coverage:
     docker:
-      - image: circleci/node:10.11.0
+      - image: circleci/node:12.16.0
     working_directory: ~/set-protocol-v2
     steps:
       - attach_workspace:

contracts/mocks/StandardTokenWithRoundingErrorMock.sol

@@ -41,7 +41,7 @@ contract StandardTokenWithRoundingErrorMock {
 
     uint256 constant public decimals = 18;
     string public name;
-    string public symbol;        
+    string public symbol;
     int256 public err;
 
     mapping (address => uint256) public _balances;
@@ -57,10 +57,10 @@ contract StandardTokenWithRoundingErrorMock {
         int256 _err,
         string memory _name,
         string memory _symbol,
-        uint8 _decimals
+        uint8 /* _decimals */
     )
         public
-        
+
     {
         _balances[_initialAccount] = _initialBalance;
         _totalSupply = _initialBalance;
@@ -97,7 +97,7 @@ contract StandardTokenWithRoundingErrorMock {
         require(_to != address(0), "to null");
         require(_value <= _balances[_from], "value greater than from balance");
         require(_value <= _allowed[_from][msg.sender], "value greater than allowed");
-        
+
         _balances[_from] = _balances[_from].sub(_value);
         _balances[_to] = _balances[_to].add(_value);
         _allowed[_from][msg.sender] = _allowed[_from][msg.sender].sub(_value);

external/abi/curve/CRVToken.json

@@ -1,8 +1,8 @@
 {
-  "contractName": "Minter",
-  "abi": [{"name":"Minted","inputs":[{"type":"address","name":"recipient","indexed":true},{"type":"address","name":"gauge","indexed":false},{"type":"uint256","name":"minted","indexed":false}],"anonymous":false,"type":"event"},{"outputs":[],"inputs":[{"type":"address","name":"_token"},{"type":"address","name":"_controller"}],"stateMutability":"nonpayable","type":"constructor"},{"name":"mint","outputs":[],"inputs":[{"type":"address","name":"gauge_addr"}],"stateMutability":"nonpayable","type":"function","gas":100038},{"name":"mint_many","outputs":[],"inputs":[{"type":"address[8]","name":"gauge_addrs"}],"stateMutability":"nonpayable","type":"function","gas":408502},{"name":"mint_for","outputs":[],"inputs":[{"type":"address","name":"gauge_addr"},{"type":"address","name":"_for"}],"stateMutability":"nonpayable","type":"function","gas":101219},{"name":"toggle_approve_mint","outputs":[],"inputs":[{"type":"address","name":"minting_user"}],"stateMutability":"nonpayable","type":"function","gas":36726},{"name":"token","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1301},{"name":"controller","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1331},{"name":"minted","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"},{"type":"address","name":"arg1"}],"stateMutability":"view","type":"function","gas":1669},{"name":"allowed_to_mint_for","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"arg0"},{"type":"address","name":"arg1"}],"stateMutability":"view","type":"function","gas":1699}],
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-  "deployedBytecode": "",
-  "linkReferences": {},
-  "deployedLinkReferences": {}
+  "contractName":"Minter",
+  "abi":[{"name":"Minted","inputs":[{"type":"address","name":"recipient","indexed":true},{"type":"address","name":"gauge","indexed":false},{"type":"uint256","name":"minted","indexed":false}],"anonymous":false,"type":"event"},{"outputs":[],"inputs":[{"type":"address","name":"_token"},{"type":"address","name":"_controller"}],"stateMutability":"nonpayable","type":"constructor"},{"name":"mint","outputs":[],"inputs":[{"type":"address","name":"gauge_addr"}],"stateMutability":"nonpayable","type":"function","gas":"100038"},{"name":"mint_many","outputs":[],"inputs":[{"type":"address[8]","name":"gauge_addrs"}],"stateMutability":"nonpayable","type":"function","gas":"408502"},{"name":"mint_for","outputs":[],"inputs":[{"type":"address","name":"gauge_addr"},{"type":"address","name":"_for"}],"stateMutability":"nonpayable","type":"function","gas":"101219"},{"name":"toggle_approve_mint","outputs":[],"inputs":[{"type":"address","name":"minting_user"}],"stateMutability":"nonpayable","type":"function","gas":"36726"},{"name":"token","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":"1301"},{"name":"controller","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":"1331"},{"name":"minted","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"},{"type":"address","name":"arg1"}],"stateMutability":"view","type":"function","gas":"1669"},{"name":"allowed_to_mint_for","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"arg0"},{"type":"address","name":"arg1"}],"stateMutability":"view","type":"function","gas":"1699"}],
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+  "deployedBytecode":"",
+  "linkReferences":{},
+  "deployedLinkReferences":{}
 }