syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:         /// Does this have `ReEarlyParam`?
context_before:         const HAS_TY_PARAM                = 1 << 0;
context_after:         const HAS_RE_PARAM                = 1 << 1;