Support typeof tuple[number] pattern

[cometkim]

// Use this to get an iterable of possible values.
const namingConvention = ['snake_case', 'camelCase'] as const;

type NamingConvention = typeof namingConvention[number];

registerType('NamingConvention');

export const isValidNamingConvention = createValidator<NamingConvention>();

got error:

Unexpected error because TSIndexedAccessType was not expected. Please report this to the developer.