Update tests for solc 0.7.x

package.json

@@ -57,8 +57,8 @@
     "hardhat-gas-reporter": "^1.0.1",
     "mocha": "5.2.0",
     "nyc": "^14.1.1",
-    "solc": "^0.5.10",
-    "truffle": "5.0.31",
+    "solc": "^0.7.5",
+    "truffle": "5.1.43",
     "truffle-config": "^1.1.18"
   }
 }

test/integration/generic/assets/SimpleError.sol

@@ -1,5 +1,5 @@
 // This contract should throw a parse error in instrumentSolidity.js
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 contract SimpleError {
     uint x = 0;

test/integration/generic/contracts/Migrations.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.22 <0.6.0;
+pragma solidity >=0.4.22 <0.8.0;
 
 
 contract Migrations {

test/integration/projects/contract-subfolders/contracts/A/ContractA2.sol

@@ -1,9 +1,8 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 import "./../B/ContractB2.sol";
 
 contract ContractA is ContractB {
-  uint x;
   constructor() public {
   }
 

test/integration/projects/contract-subfolders/contracts/B/ContractB2.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractB {

test/integration/projects/contract-subfolders/hardhat.config.js

@@ -8,7 +8,7 @@ module.exports={
     }
   },
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   paths: {
     sources: './contracts/A'

test/integration/projects/ganache-solcoverjs/contracts/ContractA.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractA {

test/integration/projects/ganache-solcoverjs/contracts/ContractB.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractB {

test/integration/projects/ganache-solcoverjs/contracts/ContractC.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractC {

test/integration/projects/ganache-solcoverjs/hardhat.config.js

@@ -3,7 +3,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   networks: {
     coverage: {

test/integration/projects/hardhat-compile-config/contracts/ContractA1.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.5.5;
 
 
 contract ContractA {

test/integration/projects/hardhat-gas-reporter/contracts/ContractA.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractA {

test/integration/projects/hardhat-gas-reporter/hardhat.config.js

@@ -4,7 +4,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/import-paths/assets/RelativePathImport.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.21 <0.6.0;
+pragma solidity >=0.4.21 <0.8.0;
 
 contract RelativePathImport {
   uint r;

test/integration/projects/import-paths/contracts/OnlyUsesImports.sol

@@ -1,3 +1,3 @@
-pragma solidity >=0.4.21 <0.6.0;
+pragma solidity >=0.4.21 <0.8.0;
 
 import "package/AnotherImport.sol";

test/integration/projects/import-paths/contracts/UsesImports.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.21 <0.6.0;
+pragma solidity >=0.4.21 <0.8.0;
 
 import "../assets/RelativePathImport.sol";
 import "package/NodeModulesImport.sol";

test/integration/projects/import-paths/hardhat.config.js

@@ -3,7 +3,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/libraries/contracts/CLibrary.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 library CLibrary {
     uint constant x = 1;

test/integration/projects/libraries/contracts/Migrations.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.21 <0.6.0;
+pragma solidity >=0.4.21 <0.8.0;
 
 contract Migrations {
   address public owner;

test/integration/projects/libraries/contracts/PureView.sol

@@ -1,14 +1,10 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 contract PureView {
 
   // Make sure we aren't corrupting anything with the replace
   uint notpureview = 5;
 
-  // Abstract functions to inherit from an uninstrumented, imported file.
-  function bePure(uint a, uint b) public pure returns (uint);
-  function beView() public view returns (uint);
-
   function inheritedPure(uint a, uint b) public pure returns(uint){
     return a + b;
   }

test/integration/projects/libraries/contracts/UsesPure.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 import "./_Interface.sol";
 import "./PureView.sol";
@@ -45,11 +45,11 @@ contract UsesPure is PureView, _Interface {
     return onehundred;
   }
 
-  function stare(uint a, uint b) external {
+  function stare(uint a, uint b) external override {
     uint z = a + b;
   }
 
-  function cry() external {
+  function cry() external override {
 
   }
 }

test/integration/projects/libraries/contracts/_Interface.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 interface _Interface {
   function stare(uint a, uint b) external;

test/integration/projects/libraries/hardhat.config.js

@@ -3,7 +3,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/logical-or/contracts/Contract_OR.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract Contract_OR {

test/integration/projects/logical-or/hardhat.config.js

@@ -3,7 +3,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/multiple-migrations/contracts/ContractA.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractA {

test/integration/projects/multiple-migrations/contracts/ContractB.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractB {

test/integration/projects/multiple-migrations/contracts/ContractC.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractC {

test/integration/projects/multiple-migrations/contracts/Migrations.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.21 <0.6.0;
+pragma solidity >=0.4.21 <0.8.0;
 
 contract Migrations {
   address public owner;

test/integration/projects/multiple-suites/contracts/ContractA.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractA {

test/integration/projects/multiple-suites/contracts/ContractB.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractB {

test/integration/projects/multiple-suites/contracts/ContractC.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractC {

test/integration/projects/multiple-suites/hardhat.config.js

@@ -8,7 +8,7 @@ module.exports={
     }
   },
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/multiple-suites/truffle-config.js

@@ -2,6 +2,8 @@ module.exports = {
   networks: {},
   mocha: {},
   compilers: {
-    solc: {}
+    solc: {
+      version: "0.7.3"
+    }
   }
 }

test/integration/projects/no-sources/hardhat.config.js

@@ -3,7 +3,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/skipping/contracts/ContractA.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractA {

test/integration/projects/skipping/contracts/skipped-folder/ContractB.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractB {

test/integration/projects/skipping/hardhat.config.js

@@ -3,7 +3,7 @@ require(__dirname + "/../plugins/nomiclabs.plugin");
 
 module.exports = {
   solidity: {
-    version: "0.5.15"
+    version: "0.7.3"
   },
   logger: process.env.SILENT ? { log: () => {} } : console,
 };

test/integration/projects/test-files/contracts/ContractA.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
 
 contract ContractA {