Report async code fix diagnostic on function name whenever it exists

[uniqueiniquity]

TypeScript Version: typescript@next

Search Terms:
async, code fix

Code

const foo = function y() { return fetch('https://typescriptlang.org').then(result => { console.log(result) }); };

Expected behavior:
Suggestion diagnostic on y.
Actual behavior:
Suggestion diagnostic on foo.

Related Issues:
#26374