Fix #5928 - Write line after shebang

src/compiler/emitter.ts

@@ -7814,6 +7814,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, Promi
                 const shebang = getShebang(currentText);
                 if (shebang) {
                     write(shebang);
+                    writeLine();
                 }
             }
         }

tests/baselines/reference/shebangBeforeReferences.js

@@ -16,6 +16,7 @@ import {x} from "test";
 use(x);
 
 //// [f.js]
-#!/usr/bin/env node"use strict";
+#!/usr/bin/env node
+"use strict";
 var test_1 = require("test");
 use(test_1.x);