Add DefaultFullHttpResponse to Netty Check

[JLLeitschuh]

Seems like there's another constructor you can shoot yourself in the foot with. 🤕

https://netty.io/4.0/api/io/netty/handler/codec/http/DefaultFullHttpResponse.html#DefaultFullHttpResponse-io.netty.handler.codec.http.HttpVersion-io.netty.handler.codec.http.HttpResponseStatus-io.netty.buffer.ByteBuf-boolean-

[aschackmull]

LGTM.

[aschackmull]

There's a compilation error:

[ERROR] Characteristic predicate named InsecureDefaultFullHttpResponseClassInstantiation expected (/home/jenkins/workspace/Language-Tests/Java/job/ql/java/ql/src/Security/CWE/CWE-113/NettyResponseSplitting.ql:33,3-48)

[JLLeitschuh]

Fixed!