Message Title

Here is a github branch with three new test-cases that hilight the behavior described in this issue:

./gradlew hibernate-core:test --tests org.hibernate.jpa.test.query.QueryTest


[...]
> Task :hibernate-core:test 

org.hibernate.jpa.test.query.QueryTest > testParameterCollectionAndPositional FAILED
    java.lang.IllegalArgumentException at QueryTest.java:736
        Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException at QueryTest.java:736

org.hibernate.jpa.test.query.QueryTest > testParameterCollectionParenthesesAndPositional FAILED
    java.lang.IllegalArgumentException at QueryTest.java:781
        Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException at QueryTest.java:781

40 tests completed, 2 failed
[...]