syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // Inline-context format.
context_before:             if $span.len_with_tag_or_marker & PARENT_TAG == 0 {
context_after:                 let $span1 = InlineCtxt::from_span($span);