[WIP] Implement parsing for lambdas + start implementing call

src/vm/commands/enclose.ts

@@ -9,10 +9,10 @@ export type EncloseData = {
 }
 
 export class Enclose extends Command<EncloseData> {
-    attemptParse(context: ParseContext): EncloseData {
+    async attemptParse(context: ParseContext): Promise<EncloseData> {
         return {
-            left: context.popOptionalTerm(),
-            right: context.popOptionalTerm(),
+            left: await context.popOptionalTerm(),
+            right: await context.popOptionalTerm(),
         }
     }