vscode-lit-plugin issue #313 reproduction

This demonstrates the error with vscode-lit-plugin causing spurious missing import warnings.

To reproduce simply open the index.ts in VSCode with the plugin installed. If you remove one of the two element imports, you'll note all elements get marked as missing imports. When you re-add that import, only that one resolves while the others remain missing.

You can also confirm this is a vscode-lit-plugin specific issue by running pnpm run lit-analyzer at the cli to run the analyzer standalone which works as expected.