Recrate #833 from scratch to avoid CLA issues

Author: orta

baselines/dom.generated.d.ts

@@ -19225,7 +19225,7 @@ interface BlobCallback {
 }
 
 interface CustomElementConstructor {
-    new (): HTMLElement;
+    new (...params:[]): HTMLElement;
 }
 
 interface DecodeErrorCallback {

inputfiles/overridingTypes.json

@@ -314,7 +314,7 @@
             },
             "CustomElementConstructor": {
                 "override-signatures": [
-                    "new (): HTMLElement"
+                    "new (...params:[]): HTMLElement"
                 ]
             }
         }