From bd8c565c74065a2f29f8260157979a8e09c978f2 Mon Sep 17 00:00:00 2001
From: Richard Smith <richard@metafoo.co.uk>
Date: Thu, 25 Jun 2026 14:24:25 -0700
Subject: [PATCH] vscode: don't use carbon LSP for testdata files (#7420)

These files aren't exactly written in Carbon, but rather in some
meta-language with file splits and semantically meaningful comments, and
in any case getting red squiggles for expected errors is distracting and
largely unhelpful.

(We *could* teach the LSP to run the test and produce errors if the test
doesn't match its expectations, but it's not clear that that would be
helpful in practice either.)
---
 utils/vscode/src/extension.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/utils/vscode/src/extension.ts b/utils/vscode/src/extension.ts
index 90f7427e9af9..0295136d39cc 100644
--- a/utils/vscode/src/extension.ts
+++ b/utils/vscode/src/extension.ts
@@ -291,7 +291,6 @@ export function activate(context: ExtensionContext) {
   const clientOptions: LanguageClientOptions = {
     documentSelector: [
       { language: 'carbon' },
-      { language: 'carbon-testdata' },
     ],
   };