syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":".macro_backtrace(macro_backtrace)"}]}
source_snippet:                     .macro_backtrace(macro_backtrace)
context_before:                     .diagnostic_width(sopts.diagnostic_width)
context_after:                     .track_diagnostics(track_diagnostics)