Include a stack in InitializationFailedResponse

src/jsTyping/types.ts

@@ -51,6 +51,7 @@ declare namespace ts.server {
     export interface InitializationFailedResponse extends TypingInstallerResponse {
         readonly kind: EventInitializationFailed;
         readonly message: string;
+        readonly stack?: string;
     }
 
     export interface ProjectResponse extends TypingInstallerResponse {

src/typingsInstaller/nodeTypingsInstaller.ts

@@ -122,7 +122,8 @@ namespace ts.server.typingsInstaller {
                 // store error info to report it later when it is known that server is already listening to events from typings installer
                 this.delayedInitializationError = {
                     kind: "event::initializationFailed",
-                    message: (<Error>e).message
+                    message: (<Error>e).message,
+                    stack: (<Error>e).stack,
                 };
             }
 

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -4960,6 +4960,7 @@ declare namespace ts.server {
     interface InitializationFailedResponse extends TypingInstallerResponse {
         readonly kind: EventInitializationFailed;
         readonly message: string;
+        readonly stack?: string;
     }
     interface ProjectResponse extends TypingInstallerResponse {
         readonly projectName: string;

tests/baselines/reference/api/typescript.d.ts

@@ -4960,6 +4960,7 @@ declare namespace ts.server {
     interface InitializationFailedResponse extends TypingInstallerResponse {
         readonly kind: EventInitializationFailed;
         readonly message: string;
+        readonly stack?: string;
     }
     interface ProjectResponse extends TypingInstallerResponse {
         readonly projectName: string;