Include test that printSchema includes non-spec directives. Closes #1072
Include test that printSchema includes non-spec directives. Closes #1072

graphql/graphql-js,enaqx/graphql-js,graphql/graphql-js,jjergus/graphql-js,enaqx/graphql-js,tgriesser/graphql-js,graphql/graphql-js,jjergus/graphql-js,enaqx/graphql-js,tgriesser/graphql-js