syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// to us by LLVM are relative to the start of the original buffer, not the
context_before:     /// be used for error reporting with spans. However the byte offsets given
context_after:     /// normalized one. Hence we need to convert those offsets to the normalized