added an improvement to show the correct stack trace info for some er…

…rors

lib/testsuite/context.js

@@ -234,6 +234,7 @@ class Context extends EventEmitter {
       } catch (err) {
         const error = new Error(`Error while trying to load ${this.modulePath}`);
         error.detailedErr = err.message;
+        error.stack = err.stack;
 
         throw error;
       }