fix: proper stack traces from tests

With this change the stack traces when running the Node.js tests
now display the correct source line of the error and not the line
of the build.

package.json

@@ -75,6 +75,7 @@
     "safe-buffer": "^5.1.1",
     "semver": "^5.4.1",
     "simple-git": "^1.85.0",
+    "source-map-support": "^0.5.4",
     "stream-http": "^2.7.2",
     "through": "^2.3.8",
     "transform-loader": "^0.2.4",

src/test/node.js

@@ -27,7 +27,8 @@ function testNode (ctx) {
 
   let args = [
     '--ui', 'bdd',
-    '--colors'
+    '--colors',
+    '--require', 'source-map-support/register'
   ]
 
   let files = [