playground build issues

playground/src/newt.d.ts

@@ -0,0 +1,7 @@
+import { Diagnostic, HoverResult, CodeAction } from './ipc'
+
+export function LSP_updateFile(name: string, content: string): any;
+export function LSP_checkFile(name: string): Diagnostic[];
+export function LSP_hoverInfo(name: string, row: number, col: number): HoverResult | boolean | null;
+export function LSP_codeActionInfo(name: string, row: number, col: number): CodeAction[] | null;
+export function LSP_compileJS(name: string): string;