Fix js/ts cross code block intellisense (#213726)

We need to register support for the backing copilot scheme too, not just the panel scheme in core

extensions/typescript-language-features/src/configuration/fileSchemes.ts

@@ -17,8 +17,13 @@ export const vsls = 'vsls';
 export const walkThroughSnippet = 'walkThroughSnippet';
 export const vscodeNotebookCell = 'vscode-notebook-cell';
 export const officeScript = 'office-script';
+
+/** Used for code blocks in chat by vs code core */
 export const chatCodeBlock = 'vscode-chat-code-block';
 
+/** Used for code blocks in chat by copilot. */
+export const chatBackingCodeBlock = 'vscode-copilot-chat-code-block';
+
 export function getSemanticSupportedSchemes() {
 	if (isWeb() && vscode.workspace.workspaceFolders) {
 		return vscode.workspace.workspaceFolders.map(folder => folder.uri.scheme);
@@ -30,6 +35,7 @@ export function getSemanticSupportedSchemes() {
 		walkThroughSnippet,
 		vscodeNotebookCell,
 		chatCodeBlock,
+		chatBackingCodeBlock,
 	];
 }
 
@@ -42,3 +48,8 @@ export const disabledSchemes = new Set([
 	github,
 	azurerepos,
 ]);
+
+export function isOfScheme(uri: vscode.Uri, ...schemes: string[]): boolean {
+	const normalizedUriScheme = uri.scheme.toLowerCase();
+	return schemes.some(scheme => normalizedUriScheme === scheme);
+}

extensions/typescript-language-features/src/languageFeatures/workspaceSymbols.ts

@@ -94,7 +94,7 @@ class TypeScriptWorkspaceSymbolProvider implements vscode.WorkspaceSymbolProvide
 		}
 
 		const uri = this.client.toResource(item.file);
-		if (uri.scheme === fileSchemes.chatCodeBlock) {
+		if (fileSchemes.isOfScheme(uri, fileSchemes.chatCodeBlock, fileSchemes.chatBackingCodeBlock)) {
 			return;
 		}
 

extensions/typescript-language-features/src/tsServer/bufferSyncSupport.ts

@@ -227,7 +227,7 @@ class SyncedBuffer {
 			return tsRoot?.startsWith(inMemoryResourcePrefix) ? undefined : tsRoot;
 		}
 
-		return resource.scheme === fileSchemes.officeScript || resource.scheme === fileSchemes.chatCodeBlock ? '/' : undefined;
+		return fileSchemes.isOfScheme(resource, fileSchemes.officeScript, fileSchemes.chatCodeBlock, fileSchemes.chatBackingCodeBlock) ? '/' : undefined;
 	}
 
 	public get resource(): vscode.Uri {
@@ -752,7 +752,7 @@ export default class BufferSyncSupport extends Disposable {
 	}
 
 	private shouldValidate(buffer: SyncedBuffer): boolean {
-		if (buffer.resource.scheme === fileSchemes.chatCodeBlock) {
+		if (fileSchemes.isOfScheme(buffer.resource, fileSchemes.chatCodeBlock, fileSchemes.chatBackingCodeBlock)) {
 			return false;
 		}