syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"ConstBlockNotSupported(#[primary_span]"}]}
source_snippet:     ConstBlockNotSupported(#[primary_span] Span),
context_before:     #[label(ty_utils_const_block_not_supported)]
context_after:     #[label(ty_utils_adt_not_supported)]