fix: event emitter on extended Process (#264)

* fix: event emitter on extended Process

* Review feedback

Author: mxschmitt

src/module-declaration.ts

@@ -96,7 +96,7 @@ export const generateModuleDeclaration = (
       ...parentModules.map(m => m.instanceEvents || []),
     )
       .sort((a, b) => a.name.localeCompare(b.name))
-      .forEach(moduleEvent => {
+      .forEach((moduleEvent, i, events) => {
         utils.extendArray(
           moduleAPI,
           utils.wrapComment(moduleEvent.description, moduleEvent.additionalTags),
@@ -198,6 +198,15 @@ export const generateModuleDeclaration = (
           }
           moduleAPI.push(`${method}(event: '${moduleEvent.name}', listener: ${listener}): this;`);
         }
+
+        // EventEmitter methods get overriden above. In order to not break untyped usage, we need to add them back after the last event.
+        if (module.name === 'process' && i === events.length - 1) {
+          for (const method of methods) {
+            moduleAPI.push(
+              `${method}(eventName: string | symbol, listener: (...args: any[]) => void): this;`,
+            );
+          }
+        }
       });
   }