Path aliasing creates build error

[khabubuphathu]

Reproduction link or steps

1. Open this stackblitz link Stackblitz
2. Run "pnpm run build"
3. See the build output that contains an error

What is expected?

The project must successfully build with path aliasing

What is actually happening?

When building the project it throws an error ERROR Error: internal error: entered unreachable code: Should always rewrite to Identifier for JsxMemberExpression::get_identifier()

Any additional comments?

I just tried to migrate my Preact library that has the following path aliasing

{
  "include": ["src"],
  "compilerOptions": {
    // existing code
    "paths": {
      "react": ["./node_modules/preact/compat/"],
      "react/jsx-runtime": ["./node_modules/preact/jsx-runtime"],
      "react-dom": ["./node_modules/preact/compat/"],
      "react-dom/*": ["./node_modules/preact/compat/*"]
    },
  }
}

However when building the project it throws an error ERROR Error: internal error: entered unreachable code: Should always rewrite to Identifier for JsxMemberExpression::get_identifier()

[ocavue]

I can reproduce this error message without tsdown and without paths in tsconfig.json. It seems that the issue is trigged by "jsx": "preserve" in your tsconfig.json.

Upstream issue: rolldown/rolldown#6036