Merge pull request #10675 from tamasvajk/kotlin-enum-constants

Kotlin: extract `isEnumConstant` relation

java/ql/test/kotlin/library-tests/enum/enumUser.kt

@@ -1 +1,3 @@
 fun usesEnum(e: Enum<*>) = e.ordinal.toString() + e.name
+
+enum class E { A, B, C }

java/ql/test/kotlin/library-tests/enum/test.expected

@@ -1,3 +1,8 @@
+enumConstants
+| enumUser.kt:3:16:3:17 | A |
+| enumUser.kt:3:19:3:20 | B |
+| enumUser.kt:3:22:3:22 | C |
+#select
 | addAll |
 | addRange |
 | allOf |

java/ql/test/kotlin/library-tests/enum/test.ql

@@ -3,3 +3,5 @@ import java
 from Method m
 where m.getDeclaringType().getName().matches("Enum%")
 select m.getName()
+
+query predicate enumConstants(EnumConstant ec) { ec.fromSource() }