Forgot to add child_process_should_emit_error.js

test/fixtures/child_process_should_emit_error.js

@@ -0,0 +1,9 @@
+var exec = require('child_process').exec, 
+    puts = require('sys').puts;
+
+[0, 1].forEach(function(i) {
+ exec('ls', function(err, stdout, stderr) {
+   puts(i);
+   throw new Error('hello world');
+ });
+});