Support tsconfig.json with references

[hyunbinseo]

Description

I am trying to use multiple tsconfig files using the references field.

• Separate tsconfig.json for server and client kit#12537

However, svelte-check and Svelte for VS Code do not seem to utilize the referenced project(s).

As a result, svelte-check results and error messages in VS Code editor do not match.

Reference the FIXME comments in hyunbinseo/svelte-kit-templates@85616f7

// tsconfig.json - base config
{
  "extends": "./.svelte-kit/tsconfig.json",
  "compilerOptions": { "lib": ["ES2022"] },
  "references": [{ "path": "./tsconfig.client.json" }]
}

// tsconfig.client.json - client-only config
{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "composite": true,
    "noEmit": false,
    "declaration": true,
    "emitDeclarationOnly": true,
    "lib": ["ES2020", "DOM", "DOM.Iterable"] // lower lib value in this case
  },
  "exclude": [
    "./node_modules/**",
    "./src/service-worker.js",
    "./src/service-worker.ts",
    "./src/service-worker.d.ts",
    // Exclude server files.
    "./src/lib/server/**/*.js",
    "./src/lib/server/**/*.ts",
    "./src/**/*.server.js",
    "./src/**/*.server.ts",
    "./src/**/+server.js",
    "./src/**/+server.ts"
  ]
}

Proposed solution

Support tsconfig file's references field.

https://www.typescriptlang.org/tsconfig/#references

Alternatives

No response

Additional Information, eg. Screenshots

No response

[jasonlyu123]

Duplicate of #2148