syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // Get the span for the empty match body `{}`.
context_before:         if let Some(braces_span) = self.braces_span {
context_after:             let (indentation, more) = if let Some(snippet) = sm.indentation_before(self.scrut_span)