syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"ExprKind::ValueUnwrapUnsafeBinder"}]}
source_snippet:             ExprKind::ValueUnwrapUnsafeBinder { source } => {
context_before:             }
context_after:                 let source_expr = &this.thir[source];