attempt to index a number value on directive processing

[Oleg Babin]

tarantool> require('luagraphqlparser').parse('fragment X on Y\n@foo\n{ name }')
---
- error: attempt to index a number value
...

Reported by @Totktonada

[Alexander Turenko]

I would rather consider it as a new feature: support of directives in a fragment definition. At least graphql-lua does not support it.