syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"#[label(ty_utils_const_block_not_supported)]"}]}
source_snippet:     #[label(ty_utils_const_block_not_supported)]
context_before:     FieldNotSupported(#[primary_span] Span),
context_after:     ConstBlockNotSupported(#[primary_span] Span),