Describe the bug
/src/main/java/graphql/introspection/Introspection.java has definition for __DirectiveLocation GraphQL enum on Introspection.java#L424. There seems to be a mistake on line 434, where VARIABLE_DEFINITION GraphQL enum value is linked to internal DirectiveLocation.INPUT_FIELD_DEFINITION Java enum value.

To Reproduce
Not sure, I noticed the issue when investigating the code