Kotlin: Accept test changes

Accept test changes from Kotlin 2.3.0 update

Updates expected test outputs for kotlin2 library tests to match
actual compiler output. Changes include:
- Location adjustments for properties/methods (now point to identifiers)
- CastExpr -> ImplicitCastExpr for implicit type casts
- Removed duplicate BlockStmt entries in loop ASTs
- Super constructor call location changes

Note that in Kotlin 2.3.0 super constructor calls now have locations spanning
entire class declarations instead of the actual super call site.

java/ql/test-kotlin2/library-tests/comments/comments.expected

@@ -18,9 +18,9 @@ comments
 commentOwners
 | comments.kt:1:1:1:36 | /** Kdoc owned by CompilationUnit */ | comments.kt:0:0:0:0 | comments |
 | 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:14:5:16:7 | /**\n     * Members of this group.\n     */ | comments.kt:17:5:17:23 | getMembers$private |
-| comments.kt:14:5:16:7 | /**\n     * Members of this group.\n     */ | comments.kt:17:5:17:46 | members |
-| comments.kt:14:5:16:7 | /**\n     * Members of this group.\n     */ | comments.kt:17:5:17:46 | members |
+| comments.kt:14:5:16:7 | /**\n     * Members of this group.\n     */ | comments.kt:17:13:17:23 | getMembers$private |
+| comments.kt:14:5:16:7 | /**\n     * Members of this group.\n     */ | comments.kt:17:13:17:46 | members |
+| comments.kt:14:5:16:7 | /**\n     * Members of this group.\n     */ | comments.kt:17:13:17:46 | members |
 | comments.kt:19:5:22:7 | /**\n     * Adds a [member] to this group.\n     * @return the new size of the group.\n     */ | comments.kt:23:5:26:5 | add |
 | comments.kt:48:1:50:3 | /**\n * A type alias comment\n */ | comments.kt:51:1:51:24 | MyType |
 | comments.kt:61:5:63:7 | /**\n     * A prop comment\n     */ | comments.kt:64:5:68:17 | prop |