Strip flag kind from name in overrides

Closes #981

Author: JohnnyMorganz

CHANGELOG.md

@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Sync to upstream Luau 0.670
 - Linux runners for GitHub actions are bumped from the deprecated `ubuntu-20.04` to `ubuntu-22.04`. This may mean that release artifacts no longer work on `ubuntu-20.04`.
 - Improved Studio plugin error message when attempting to connect to a server but it is not online ([#982](https://github.com/JohnnyMorganz/luau-lsp/issues/982))
+- VSCode extension will now strip the prefix `FFlag` / `DFFlag` / `FInt` / `DFInt` if they were included in the overrides name ([#981](https://github.com/JohnnyMorganz/luau-lsp/issues/981))
 
 ### Fixed
 

editors/code/src/extension.ts

@@ -194,6 +194,14 @@ const startLanguageServer = async (context: vscode.ExtensionContext) => {
 
       name = name.trim();
       value = value.trim();
+
+      // Strip kind prefix if it was included
+      for (const kind of FFLAG_KINDS) {
+        if (name.startsWith(`${kind}`)) {
+          name = name.substring(kind.length);
+        }
+      }
+
       // Validate that the name and value is valid
       if (name.length > 0 && value.length > 0) {
         fflags[name] = value;