Some fast fixes

[mcg-web]

No description provided.

[coveralls]

Coverage remained the same at 92.84% when pulling 944cceb on mcg-web:some-fixes into ccecc3c on webonyx:master.

[vladar]

What is the point of silencing trigger_error?

The whole idea behind it is to actually trigger an error. PHP has quite good error_reporting settings + ability to define custom error handler if required to intercept those.

We also have a GraphQL\Error\Warning to set up warnings which can be suppressed on demand. If you need suppressing those errors then it is better to convert trigger_error calls to corresponding GraphQL\Error\Warning::warnOnce or GraphQL\Error\Warning::warn and use GraphQL\Error\Warning::suppress with error ids.

[mcg-web]

ok didn't know about those tools, i will remove this commit 👍