syntax_data: {"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:     if let Some(include_uwtables) = sess.opts.cg.force_unwind_tables {
context_before:     // Unwind tables cannot be disabled if the target requires them.
context_after:         if sess.target.requires_uwtable && !include_uwtables {