Improve the return type of functions that return an indexed array of strings

[johnbillion]

Just some low hanging fruit. These all return an indexed array of strings.

None of them have dynamic return type extensions.

[ondrejmirtes]

Can it be changed to list<string> or those aren't lists?

Please note that lists aren't fully supported by PHPStan yet and they're currently aliased to array<int, ...> but it would be a better typehint for the future.

[johnbillion]

They're consecutively indexed lists, yes. I see there's only three existing uses of list in functionMap.php. I can switch these to list<string> if you prefer.

[ondrejmirtes]

Yes, thank you.

[ondrejmirtes]

Thank you!