Kotlin: Restrict a test's results to those in the test directory

Author: igfoo

java/ql/test/kotlin/library-tests/annotation-accessor-result-type/test.ql

@@ -1,6 +1,7 @@
 import java
 
 query predicate classExprs(Expr e, string tstr) {
+  exists(e.getFile().getRelativePath()) and
   tstr = e.getType().toString() and
   tstr.matches("%Class%")
 }