test: add missing newlines to repl .exit writes

some tests write `.exit` into a repl server without
including a newline character (`\n`), such commands
are therefore simply not executed at all, the changes
here add the missing newlines and as a side effect
remove no longer necessary `end` calls

PR-URL: #58041
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jake Yuesong Li <jake.yuesong@gmail.com>

Author: dario-piotrowicz

test/parallel/test-repl-function-definition-edge-case.js

@@ -1,6 +1,6 @@
 // Reference: https://github.com/nodejs/node/pull/7624
 'use strict';
-require('../common');
+const common = require('../common');
 const assert = require('assert');
 const repl = require('repl');
 const stream = require('stream');
@@ -9,7 +9,8 @@ const r = initRepl();
 
 r.input.emit('data', 'function a() { return 42; } (1)\n');
 r.input.emit('data', 'a\n');
-r.input.emit('data', '.exit');
+r.input.emit('data', '.exit\n');
+r.once('exit', common.mustCall());
 
 const expected = '1\n[Function: a]\n';
 const got = r.output.accumulator.join('');

test/parallel/test-repl-import-referrer.js

@@ -23,5 +23,4 @@ child.on('exit', common.mustCall(() => {
 }));
 
 child.stdin.write('await import(\'./message.mjs\');\n');
-child.stdin.write('.exit');
-child.stdin.end();
+child.stdin.write('.exit\n');

test/parallel/test-repl-options.js

@@ -136,6 +136,5 @@ r4.close();
   child.stdin.write(
     'assert.ok(util.inspect(repl.repl, {depth: -1}).includes("REPLServer"));\n'
   );
-  child.stdin.write('.exit');
-  child.stdin.end();
+  child.stdin.write('.exit\n');
 }

test/parallel/test-repl-require-context.js

@@ -20,5 +20,4 @@ child.on('exit', common.mustCall(() => {
 child.stdin.write('const isObject = (obj) => obj.constructor === Object;\n');
 child.stdin.write('isObject({});\n');
 child.stdin.write(`require(${JSON.stringify(fixture)}).isObject({});\n`);
-child.stdin.write('.exit');
-child.stdin.end();
+child.stdin.write('.exit\n');

test/parallel/test-repl-require-self-referential.js

@@ -23,5 +23,4 @@ child.on('exit', common.mustCall(() => {
 }));
 
 child.stdin.write('require("self_ref");\n');
-child.stdin.write('.exit');
-child.stdin.end();
+child.stdin.write('.exit\n');