`MockFunctionContext` cannot be used to track callback / continuation-passing methods

### Version v22.14.0 ### Platform ```text Darwin MacBookPro 24.4.0 Darwin Kernel Version 24.4.0: Fri Apr 11 18:28:23 PDT 2025; root:xnu-11417.101.15~117/RELEASE_X86_64 x86_64 ``` ### Subsystem node:test ### What steps will reproduce the bug? Consider the following test: ```javascript let fs = require('node:fs') function writer (cb) { console.log('calling fs.writeFile') fs.writeFile('test.test', 'hi', cb) } let { test } = require('node:test') test('callback test mocking not working?', (t, done) => { console.log('mocking fs.writeFile') t.mock.method(fs, 'writeFile', (dest, data, cb) => { console.log('mock writeFile executing, calling back') cb() }) writer(err => { if (err) console.warn('got a writeFile error', err) console.log('fs.writeFile mock callcount:', fs.writeFile.mock.callCount()) done() }) }) ``` When I run the above test, the call count on the mocked method is 0, even though the `console.log` from within the mocked method is output: ```console ➜ node --test callback-test.js mocking fs.writeFile calling fs.writeFile mock writeFile executing, calling back fs.writeFile mock callcount: 0 ✔ callback test mocking not working? (1.868146ms) ℹ tests 1 ℹ suites 0 ℹ pass 1 ℹ fail 0 ℹ cancelled 0 ℹ skipped 0 ℹ todo 0 ℹ duration_ms 79.29258 ``` ### How often does it reproduce? Is there a required condition? Every time. ### What is the expected behavior? Why is that the expected behavior? I would expect that the call count for the mocked method is 1 in the above test. If the `test` method provides an optional `done` callback parameter, that signaled to me that `node:test` could be used to test continuation-passing style of source code. ### What do you see instead? Instead, call count is 0: ```console ➜ node --test callback-test.js mocking fs.writeFile calling fs.writeFile mock writeFile executing, calling back fs.writeFile mock callcount: 0 ✔ callback test mocking not working? (1.868146ms) ℹ tests 1 ℹ suites 0 ℹ pass 1 ℹ fail 0 ℹ cancelle…