Add spec for crashing node process

spec/fixtures/module/crash.js

@@ -0,0 +1,13 @@
+process.crashReporter.start({
+  productName: 'Zombies',
+  companyName: 'Umbrella Corporation',
+  crashesDirectory: process.argv[4],
+  submitURL: `http://127.0.0.1:${process.argv[2]}`,
+  extra: {
+    extra1: 'extra1',
+    extra2: 'extra2',
+    _version: process.argv[3]
+  }
+})
+
+process.nextTick(() => process.crash())