fix(core): function overloading for instant

[satanTime]

there's an issue if we use no-any rule which can be solved with function overloading.

const v1: string = translate.instant('test');
const v2: string = translate.instant(['test']); // should fail.

[satanTime]

Hi @ocombe, Happy New Year!

might you check the PR?

Thanks!

[satanTime]

ping

[satanTime]

Ping there

[satanTime]

Hi @ocombe,

might you review when you have time?

Thank you in advance!

[Michael-Ziluck]

@tiaguinho This has been closed for awhile but it would be a much appreciated change. Do you know why this was closed when @teunverhaert approved?