Kotlin: Add tests

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

@@ -0,0 +1,4 @@
+| classes.kt:2:1:2:18 | ClassOne |
+| classes.kt:4:1:6:1 | ClassTwo |
+| classes.kt:8:1:10:1 | ClassThree |
+| classes.kt:12:1:15:1 | ClassFour |

java/ql/test/kotlin/library-tests/classes/classes.kt

@@ -0,0 +1,16 @@
+
+class ClassOne { }
+
+class ClassTwo (val arg: Int) {
+    val x: Int = 3
+}
+
+abstract class ClassThree {
+    abstract fun foo(arg: Int)
+}
+
+class ClassFour: ClassThree() {
+    override fun foo(arg: Int) {
+    }
+}
+

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

@@ -0,0 +1,5 @@
+import java
+
+from Class c
+select c
+

java/ql/test/kotlin/library-tests/multiple_files/classes.expected

@@ -0,0 +1,2 @@
+| file1.kt:2:1:2:16 | Class1 |
+| file2.kt:2:1:2:16 | Class2 |

java/ql/test/kotlin/library-tests/multiple_files/classes.ql

@@ -0,0 +1,5 @@
+import java
+
+from Class c
+select c
+

java/ql/test/kotlin/library-tests/multiple_files/file1.kt

@@ -0,0 +1,3 @@
+
+class Class1 { }
+

java/ql/test/kotlin/library-tests/multiple_files/file2.kt

@@ -0,0 +1,3 @@
+
+class Class2 { }
+