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.
