Update snapshots

Author: lpil

test-package-compiler/src/snapshots/test_package_compiler__generated_tests__javascript_d_ts.snap

@@ -27,7 +27,7 @@ import type * as _ from "./gleam.d.mts";
 
 export class Woo extends _.CustomType {}
 export function Wibble$Woo(): Wibble$;
-export function Wibble$isWoo(value: Wibble$): boolean;
+export function Wibble$isWoo(value: any): value is Wibble$;
 
 export type Wibble$ = Woo;
 

test-package-compiler/src/snapshots/test_package_compiler__generated_tests__javascript_import.snap

@@ -36,7 +36,7 @@ import type * as _ from "../gleam.d.mts";
 
 export class A extends _.CustomType {}
 export function A$A(): A$;
-export function A$isA(value: A$): boolean;
+export function A$isA(value: any): value is A$;
 
 export type A$ = A;