syntax_data: {"ast_node_type":"variable","tokens":[{"end":90,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                     if let LocalInfo::Boring | LocalInfo::BlockTailTemp(_) = **decl_info {
context_before:                         this.local_decls[operand].local_info.as_mut().unwrap_crate_local();
context_after:                         **decl_info = local_info;