introduces Response.json() static method

fixes #1444

Author: feugy

baselines/dom.generated.d.ts

@@ -11942,6 +11942,7 @@ declare var Response: {
     prototype: Response;
     new(body?: BodyInit | null, init?: ResponseInit): Response;
     error(): Response;
+    json(data: any, init?: ResponseInit): Response;
     redirect(url: string | URL, status?: number): Response;
 };
 

baselines/serviceworker.generated.d.ts

@@ -2931,6 +2931,7 @@ declare var Response: {
     prototype: Response;
     new(body?: BodyInit | null, init?: ResponseInit): Response;
     error(): Response;
+    json(data: any, init?: ResponseInit): Response;
     redirect(url: string | URL, status?: number): Response;
 };
 

baselines/sharedworker.generated.d.ts

@@ -2810,6 +2810,7 @@ declare var Response: {
     prototype: Response;
     new(body?: BodyInit | null, init?: ResponseInit): Response;
     error(): Response;
+    json(data: any, init?: ResponseInit): Response;
     redirect(url: string | URL, status?: number): Response;
 };
 

baselines/webworker.generated.d.ts

@@ -3049,6 +3049,7 @@ declare var Response: {
     prototype: Response;
     new(body?: BodyInit | null, init?: ResponseInit): Response;
     error(): Response;
+    json(data: any, init?: ResponseInit): Response;
     redirect(url: string | URL, status?: number): Response;
 };
 

inputfiles/removedTypes.jsonc

@@ -83,19 +83,6 @@
                     }
                 }
             },
-            "Response": {
-                "methods": {
-                    "method": {
-                        // BCD's api.Response.json is not about the static method but about Body#json.
-                        // See:
-                        // Firefox https://bugzil.la/1758943
-                        // Chrome https://crbug.com/1305358
-                        // Safari https://webkit.org/b/240375
-                        // MDN https://github.com/mdn/content/discussions/5121#discussioncomment-2735488
-                        "json": null
-                    }
-                }
-            },
             "PaymentResponse": {
                 "methods": {
                     "method": {