Update parser-antlr to ^0.4.7 (type keyword fix)

package.json

@@ -27,7 +27,7 @@
     "req-cwd": "^1.0.1",
     "shelljs": "^0.8.3",
     "sol-explore": "^1.6.2",
-    "solidity-parser-antlr": "0.4.5",
+    "solidity-parser-antlr": "^0.4.7",
     "tree-kill": "^1.2.0",
     "web3": "1.0.0-beta.50",
     "web3-eth-abi": "1.0.0-beta.50"

test/sources/statements/type-keyword.sol

@@ -0,0 +1,32 @@
+pragma solidity >0.4.99 <0.6.0;
+
+contract Account {
+  address public owner;
+
+  constructor(address payable _owner) public {
+    owner = _owner;
+  }
+
+  function setOwner(address _owner) public {
+    require(msg.sender == owner);
+    owner = _owner;
+  }
+
+  function destroy(address payable recipient) public {
+    require(msg.sender == owner);
+    selfdestruct(recipient);
+  }
+
+  function() payable external {}
+}
+
+contract Factory {
+
+    bytes32 private contractCodeHash;
+
+    constructor() public {
+        contractCodeHash = keccak256(
+            type(Account).creationCode
+        );
+    }
+}

test/statements.js

@@ -24,6 +24,13 @@ describe('generic statements', () => {
     util.report(output.errors);
   })
 
+  it('should compile when using the type keyword', () => {
+    const contract = util.getCode('statements/type-keyword.sol');
+    const info = getInstrumentedVersion(contract, filePath);
+    const output = JSON.parse(solc.compile(util.codeToCompilerInput(info.contract)));
+    util.report(output.errors);
+  })
+
   it('should compile after instrumenting a single statement (first line of function)', () => {
     const contract = util.getCode('statements/single.sol');
     const info = getInstrumentedVersion(contract, filePath);