syntax_data: {"ast_node_type":"other","tokens":[{"end":109,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // Since `Interned` is selected if the field contains `CTXT_INTERNED_MARKER` returning that value
context_before:             // All branches here, except `InlineParent`, actually return `span.ctxt_or_parent_or_marker`.
context_after:             // as the context allows the compiler to optimize out the branch that selects between either