Kotlin: Add test case for doc comment on init block

Author: tamasvajk

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

@@ -9,6 +9,7 @@ comments
 | comments.kt:37:5:37:23 | /** This is high */ | /** This is high */ |
 | comments.kt:42:5:44:6 | /**\n     * A variable.\n    */ | /**\n     * A variable.\n    */ |
 | comments.kt:48:1:50:3 | /**\n * A type alias comment\n */ | /**\n * A type alias comment\n */ |
+| comments.kt:54:5:56:7 | /**\n     * An init block comment\n     */ | /**\n     * An init block comment\n     */ |
 commentOwners
 | comments.kt:4:1:11:3 | /**\n * A group of *members*.\n *\n * This class has no useful logic; it's just a documentation example.\n *\n * @property name the name of this group.\n * @constructor Creates an empty group.\n */ | comments.kt:12:1:31:1 | Group |
 | comments.kt:4:1:11:3 | /**\n * A group of *members*.\n *\n * This class has no useful logic; it's just a documentation example.\n *\n * @property name the name of this group.\n * @constructor Creates an empty group.\n */ | comments.kt:12:1:31:1 | Group |
@@ -31,11 +32,13 @@ commentSections
 | comments.kt:37:5:37:23 | /** This is high */ | This is high |
 | comments.kt:42:5:44:6 | /**\n     * A variable.\n    */ | A variable. |
 | comments.kt:48:1:50:3 | /**\n * A type alias comment\n */ | A type alias comment |
+| comments.kt:54:5:56:7 | /**\n     * An init block comment\n     */ | An init block comment |
 commentSectionContents
 | A group of *members*.\n\nThis class has no useful logic; it's just a documentation example.\n\n | A group of *members*.\n\nThis class has no useful logic; it's just a documentation example.\n\n |
 | A type alias comment | A type alias comment |
 | A variable. | A variable. |
 | Adds a [member] to this group.\n | Adds a [member] to this group.\n |
+| An init block comment | An init block comment |
 | Creates an empty group. | Creates an empty group. |
 | Kdoc with no owner | Kdoc with no owner |
 | Medium is in the middle | Medium is in the middle |

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

@@ -49,3 +49,10 @@ fun fn1() {
  * A type alias comment
  */
 typealias MyType = Group
+
+class InitBlock {
+    /**
+     * An init block comment
+     */
+    init { }
+}