classes but also property and package level functions

classdescriptor covers interface, object and class

For example https://github.com/arrow-kt/arrow-meta/blob/e3c602633948dad3594cce9a22035e0d06e3b1a7/compiler-plugin/src/main/kotlin/arrow/meta/plugins/proofs/phases/resolve/cache/ProofsCache.kt#L58

String | Int

as syntax you type is not possible without grammar changes to the lang because there is currently no support for infix types or type aliases

it won’t get to AST, fails parsing