feat(examples): Add return closure rename example [fixes LNG-193] (#84)

aqua/examples/closureReturnRename.aqua

@@ -0,0 +1,15 @@
+export lng193Bug
+
+func getClosure(arg: u16, peer: string) -> u16 -> u16:
+  on peer:
+    closure = (x: u16) -> u16:
+      <- arg + x
+  <- closure
+
+func lng193Bug(peer: string, closurePeer: string) -> u16:
+  on peer:
+    c = getClosure(42, closurePeer)
+    b = c
+    a = b
+    res = a(1) + b(2) + c(3)
+  <- res

src/__test__/examples.spec.ts

@@ -38,6 +38,7 @@ import {literalCall} from '../examples/returnLiteralCall.js';
 import {multiReturnCall} from '../examples/multiReturnCall.js';
 import {declareCall} from '../examples/declareCall.js';
 import {genOptions, genOptionsEmptyString} from '../examples/optionsCall.js';
+import { lng193BugCall } from '../examples/closureReturnRename.js';
 import {closuresCall} from '../examples/closures.js';
 import {bugLNG63_2Call, bugLNG63_3Call, bugLNG63Call, streamCanCall} from '../examples/streamCanCall.js';
 import {streamCallbackCall} from '../examples/streamCallback.js';
@@ -527,6 +528,11 @@ describe('Testing examples', () => {
         expect(res3).toEqual(res4);
     }, 180000);
 
+    it('closureReturnRename.aqua bug LNG-193', async () => {
+        let result = await lng193BugCall();
+        expect(result).toEqual(1 + 42 + 2 + 42 + 3 + 42)
+    }, 20000)
+
     it('closures.aqua', async () => {
         let closuresResult = await closuresCall();
         let res1 = config.externalAddressesRelay2;

src/examples/closureReturnRename.ts

@@ -0,0 +1,11 @@
+import { Fluence } from '@fluencelabs/fluence';
+import {
+    lng193Bug
+} from '../compiled/examples/closureReturnRename.js';
+import { config } from '../config.js'
+
+const relays = config.relays
+
+export async function lng193BugCall(): Promise<number> {
+    return lng193Bug(relays[4].peerId, relays[5].peerId)
+}