Merge pull request #9405 from zspitz/patch-1

getVarDate should be on the Date interface

src/lib/scripthost.d.ts

@@ -284,5 +284,8 @@ interface VarDate { }
 
 interface DateConstructor {
     new (vd: VarDate): Date;
+}
+
+interface Date {
     getVarDate: () => VarDate;
-}
+}