cucumber: add missing props to ScenarioResult and StepDefinition (#40102)

* add optional `exception` to HookScenarioResult

* add optional unwrappedCode prop to StepDefinition

* update cucumber-js version in header

types/cucumber/cucumber-tests.ts

@@ -60,6 +60,13 @@ function StepSampleWithoutDefineSupportCode() {
         callback();
     });
 
+    After((scenarioResult: HookScenarioResult, callback: Callback) => {
+        if (scenarioResult.result.exception) {
+            console.error(scenarioResult.result.exception);
+        }
+        callback();
+    });
+
     After({ timeout: 1000 }, (scenarioResult: HookScenarioResult, callback: Callback) => {
         console.log("After");
         callback();

types/cucumber/index.d.ts

@@ -1,4 +1,4 @@
-// Type definitions for cucumber-js 4.0
+// Type definitions for cucumber-js 6.0
 // Project: http://github.com/cucumber/cucumber-js
 // Definitions by: Abraão Alves <https://github.com/abraaoalves>
 //                 Jan Molak <https://github.com/jan-molak>
@@ -7,6 +7,7 @@
 //                 ErikSchierboom <https://github.com/ErikSchierboom>
 //                 Peter Morlion <https://github.com/petermorlion>
 //                 Don Jayamanne <https://github.com/DonJayamanne>
+//                 David Goss <https://github.com/davidjgoss>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.4
 
@@ -97,6 +98,7 @@ export interface SourceLocation {
 export interface ScenarioResult {
     duration: number;
     status: Status;
+    exception?: Error;
 }
 
 export namespace pickle {
@@ -253,8 +255,10 @@ export namespace events {
 }
 
 export interface StepDefinition {
-    // tslint:disable-next-line ban-types
+    // tslint:disable:ban-types
     code: Function;
+    unwrappedCode?: Function;
+    // tslint:enable:ban-types
     line: number;
     options: {};
     pattern: any;