test: fix undeclared variable access

Fixes all cases of undeclared variable access as uncovered by the
no-undef rule of eslint.

PR-URL: https://github.com/nodejs/io.js/pull/1794
Reviewed-By: Trevor Norris <trev.norris@gmail.com>

test/parallel/test-cluster-worker-exit.js

@@ -106,9 +106,6 @@ function checkResults(expected_results, results) {
     var actual = results[k],
         expected = expected_results[k];
 
-    if (typeof expected === 'function') {
-      expected(r[k]);
-    } else {
     var msg = (expected[1] || '') +
         (' [expected: ' + expected[0] + ' / actual: ' + actual + ']');
 
@@ -119,7 +116,6 @@ function checkResults(expected_results, results) {
     }
   }
 }
-}
 
 function alive(pid) {
   try {

test/parallel/test-cluster-worker-kill.js

@@ -106,9 +106,6 @@ function checkResults(expected_results, results) {
     var actual = results[k],
         expected = expected_results[k];
 
-    if (typeof expected === 'function') {
-      expected(r[k]);
-    } else {
     var msg = (expected[1] || '') +
         (' [expected: ' + expected[0] + ' / actual: ' + actual + ']');
     if (expected && expected.length) {
@@ -118,7 +115,6 @@ function checkResults(expected_results, results) {
     }
   }
 }
-}
 
 function alive(pid) {
   try {

test/pummel/test-net-timeout.js

@@ -79,7 +79,7 @@ process.on('exit', function() {
   assert.ok(starttime != null);
   assert.ok(timeouttime != null);
 
-  diff = timeouttime - starttime;
+  var diff = timeouttime - starttime;
   console.log('diff = ' + diff);
 
   assert.ok(timeout < diff);