syntax_data: {"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                             if sm.span_to_snippet(sm.next_point(brace_span)).as_deref() == Ok("{") {
context_before:                             let brace_span = sm.span_extend_to_next_char(scrut_span, '{', true);
context_after:                                 let sp = brace_span.shrink_to_hi().with_hi(expr_span.hi());