process: nextTick should not be handled lazily

src/node.js

@@ -489,6 +489,8 @@
       // on the way out, don't bother. it won't get fired anyway.
       if (process._exiting)
         return;
+      if (typeof callback !== 'function')
+        throw new Error('callback is not a function');
 
       var args;
       if (arguments.length > 1) {

test/parallel/test-next-tick-errors.js

@@ -20,6 +20,15 @@ process.nextTick(function() {
   order.push('C');
 });
 
+try {
+  process.nextTick();
+} catch (e) {
+  // should handle this error at try...catch
+  if (!e) {
+    assert.fail();
+  }
+}
+
 process.on('uncaughtException', function() {
   if (!exceptionHandled) {
     exceptionHandled = true;