test: use const instead of var in test-require-json.js

PR-URL: #9904 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Myles Borins <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]>

Author: sarahmeyer

test/parallel/test-require-json.js

@@ -1,12 +1,12 @@
 'use strict';
-varcommon=require('../common');
-varpath=require('path');
-varassert=require('assert');
+constcommon=require('../common');
+constpath=require('path');
+constassert=require('assert');
 
 try{
 require(path.join(common.fixturesDir,'invalid.json'));
 }catch(err){
-varre=/test[/\\]fixtures[/\\]invalid.json:Unexpectedstring/;
-vari=err.message.match(re);
+constre=/test[/\\]fixtures[/\\]invalid.json:Unexpectedstring/;
+consti=err.message.match(re);
 assert.notStrictEqual(null,i,'require() json error should include path');
 }