Fix #59138 - revive URI from findFiles

src/vs/workbench/api/electron-browser/mainThreadWorkspace.ts

@@ -114,7 +114,8 @@ export class MainThreadWorkspace implements MainThreadWorkspaceShape {
 
 	// --- search ---
 
-	$startFileSearch(includePattern: string, includeFolder: URI, excludePatternOrDisregardExcludes: string | false, maxResults: number, token: CancellationToken): Thenable<URI[]> {
+	$startFileSearch(includePattern: string, _includeFolder: UriComponents, excludePatternOrDisregardExcludes: string | false, maxResults: number, token: CancellationToken): Thenable<URI[]> {
+		const includeFolder = URI.revive(_includeFolder);
 		const workspace = this._contextService.getWorkspace();
 		if (!workspace.folders.length) {
 			return undefined;