Crash when using Vite + dynamic imports

**Summary** Stryker applies the `FilledStringToEmpty` mutator on all strings, including dynamic imports, for example this: ```ts const { deleteBoardsPermanentlyUnchecked } = await import("$lib/services/board/manage.server") ``` becomes this: ```ts const { deleteBoardsPermanentlyUnchecked } = await import(stryMutAct_9fa48("2680") ? "" : (stryCov_9fa48("2680"), "$lib/services/board/manage.server")); ``` Which then causes Vite pipeline to try and process the 2 imports: `"$lib/services/board/manage.server"` and `""`. The latter resolves to the project root directory and fails to load since it's a directory, not file, with: ``` 18:30:49 (33824) ERROR DryRunExecutor One or more tests resulted in an error: Test runner crashed. Tried twice to restart it without any luck. Last time the error message was: Error: Error: ERR_LOAD_URL (undefined) Error: Failed to load url C:/Users/Matei/<project-dir>/.stryker-tmp/sandbox-wOVtDp (resolved id: C:/Users/Matei/<project-dir>/.stryker-tmp/sandbox-wOVtDp). Does the file exist? ``` **Stryker config** <!--- Please place your stryker config below. Feel free to change paths in the files and mutate arrays if you cannot share them. --> ```js // https://stryker-mutator.io/docs/stryker-js/guides/svelte // @ts-check /** @type {import('@stryker-mutator/api/core').PartialStrykerOptions} */ const config = { packageManager: "yarn", testRunner: "vitest", reporters: ["progress", "clear-text", "html"], mutate: [ "src/**/*.ts", "!src/**/*.d.ts", "!src/**/*.test.ts", ], ignorePatterns: [".idea", ".github", "build", "mod_packages", "scripts", "static", ".env", ".env.*", "*.MD"], } // noinspection JSUnusedGlobalSymbols export default config ``` **Stryker environment** <!-- Please list your stryker plugins + versions here (output of `npm ls | grep stryker` or `npm ls | findstr "stryker"` on Windows) --> ``` +-- @stryker-mutator/api@9.4.0 +-- @stryker-mutator/core@9.4.0 +-- @stryker-mutator/instrumenter@9.4.0 +-- @stryker-mutator/util@9.4.0 +-- @stryker-mutator/vitest-runner@9.4.0 ``` <!-- Please also add the test runner you are using. Examples:--> ``` +-- vite@7.3.1 +-- vitest@4.0.17 ``` **Test runner environment** <!-- Please add your test command here (probably the command you use in `npm test`) command --> ```shell vitest stryker run ``` **Your Environment** | software | version(s) | ---------------- | ------- | node | v24.4.0 | yarn | v4.12.0 | Operating System | Window 11 [Version 10.0.26100.7623] **Add stryker.log** [stryker.log](https://github.com/user-attachments/files/24970436/stryker.log)