Merge pull request #394 from jamestalmage/long-stack-traces-in-forks

Use long stack traces in forks.

lib/test-worker.js

@@ -23,6 +23,10 @@ if (debug.enabled) {
 
 // bind globals first before anything has a chance to interfere
 var globals = require('./globals');
+var Promise = require('bluebird');
+
+// Bluebird specific
+Promise.longStackTraces();
 
 (opts.require || []).forEach(require);